diff --git a/internal/cli/config.go b/internal/cli/config.go
index c4666dd..9ce114a 100644
--- a/internal/cli/config.go
+++ b/internal/cli/config.go
@@ -15,7 +15,7 @@ import (
 	"strings"
 
 	"github.com/terraform-docs/terraform-docs/internal/print"
-	"github.com/terraform-docs/terraform-docs/internal/terraform"
+	"github.com/terraform-docs/terraform-docs/terraform"
 )
 
 // Mappings of CLI flags to Viper config
diff --git a/internal/cli/run.go b/internal/cli/run.go
index a8d46e4..c275423 100644
--- a/internal/cli/run.go
+++ b/internal/cli/run.go
@@ -25,8 +25,8 @@ import (
 	pluginsdk "github.com/terraform-docs/plugin-sdk/plugin"
 	"github.com/terraform-docs/terraform-docs/internal/format"
 	"github.com/terraform-docs/terraform-docs/internal/plugin"
-	"github.com/terraform-docs/terraform-docs/internal/terraform"
 	"github.com/terraform-docs/terraform-docs/internal/version"
+	"github.com/terraform-docs/terraform-docs/terraform"
 )
 
 // Runtime represents the execution runtime for CLI.
diff --git a/internal/format/asciidoc_document.go b/internal/format/asciidoc_document.go
index 7625283..ba08d0d 100644
--- a/internal/format/asciidoc_document.go
+++ b/internal/format/asciidoc_document.go
@@ -15,8 +15,8 @@ import (
 	gotemplate "text/template"
 
 	"github.com/terraform-docs/terraform-docs/internal/print"
-	"github.com/terraform-docs/terraform-docs/internal/terraform"
 	"github.com/terraform-docs/terraform-docs/template"
+	"github.com/terraform-docs/terraform-docs/terraform"
 )
 
 //go:embed templates/asciidoc_document*.tmpl
diff --git a/internal/format/asciidoc_document_test.go b/internal/format/asciidoc_document_test.go
index bfb113f..27aff7d 100644
--- a/internal/format/asciidoc_document_test.go
+++ b/internal/format/asciidoc_document_test.go
@@ -16,8 +16,8 @@ import (
 	"github.com/stretchr/testify/assert"
 
 	"github.com/terraform-docs/terraform-docs/internal/print"
-	"github.com/terraform-docs/terraform-docs/internal/terraform"
 	"github.com/terraform-docs/terraform-docs/internal/testutil"
+	"github.com/terraform-docs/terraform-docs/terraform"
 )
 
 func TestAsciidocDocument(t *testing.T) {
diff --git a/internal/format/asciidoc_table.go b/internal/format/asciidoc_table.go
index 26d1dec..c666874 100644
--- a/internal/format/asciidoc_table.go
+++ b/internal/format/asciidoc_table.go
@@ -15,8 +15,8 @@ import (
 	gotemplate "text/template"
 
 	"github.com/terraform-docs/terraform-docs/internal/print"
-	"github.com/terraform-docs/terraform-docs/internal/terraform"
 	"github.com/terraform-docs/terraform-docs/template"
+	"github.com/terraform-docs/terraform-docs/terraform"
 )
 
 //go:embed templates/asciidoc_table*.tmpl
diff --git a/internal/format/asciidoc_table_test.go b/internal/format/asciidoc_table_test.go
index 0b68222..fff9458 100644
--- a/internal/format/asciidoc_table_test.go
+++ b/internal/format/asciidoc_table_test.go
@@ -16,8 +16,8 @@ import (
 	"github.com/stretchr/testify/assert"
 
 	"github.com/terraform-docs/terraform-docs/internal/print"
-	"github.com/terraform-docs/terraform-docs/internal/terraform"
 	"github.com/terraform-docs/terraform-docs/internal/testutil"
+	"github.com/terraform-docs/terraform-docs/terraform"
 )
 
 func TestAsciidocTable(t *testing.T) {
diff --git a/internal/format/common_test.go b/internal/format/common_test.go
index a42544c..f9f102c 100644
--- a/internal/format/common_test.go
+++ b/internal/format/common_test.go
@@ -16,8 +16,8 @@ import (
 
 	"github.com/stretchr/testify/assert"
 
-	"github.com/terraform-docs/terraform-docs/internal/terraform"
 	"github.com/terraform-docs/terraform-docs/internal/testutil"
+	"github.com/terraform-docs/terraform-docs/terraform"
 )
 
 func TestCommonSort(t *testing.T) {
diff --git a/internal/format/json.go b/internal/format/json.go
index 6d84246..02b6613 100644
--- a/internal/format/json.go
+++ b/internal/format/json.go
@@ -16,7 +16,7 @@ import (
 	"strings"
 
 	"github.com/terraform-docs/terraform-docs/internal/print"
-	"github.com/terraform-docs/terraform-docs/internal/terraform"
+	"github.com/terraform-docs/terraform-docs/terraform"
 )
 
 // JSON represents JSON format.
diff --git a/internal/format/json_test.go b/internal/format/json_test.go
index a8c6cd8..e50d114 100644
--- a/internal/format/json_test.go
+++ b/internal/format/json_test.go
@@ -16,8 +16,8 @@ import (
 	"github.com/stretchr/testify/assert"
 
 	"github.com/terraform-docs/terraform-docs/internal/print"
-	"github.com/terraform-docs/terraform-docs/internal/terraform"
 	"github.com/terraform-docs/terraform-docs/internal/testutil"
+	"github.com/terraform-docs/terraform-docs/terraform"
 )
 
 func TestJson(t *testing.T) {
diff --git a/internal/format/markdown_document.go b/internal/format/markdown_document.go
index 4f49a75..5496e13 100644
--- a/internal/format/markdown_document.go
+++ b/internal/format/markdown_document.go
@@ -15,8 +15,8 @@ import (
 	gotemplate "text/template"
 
 	"github.com/terraform-docs/terraform-docs/internal/print"
-	"github.com/terraform-docs/terraform-docs/internal/terraform"
 	"github.com/terraform-docs/terraform-docs/template"
+	"github.com/terraform-docs/terraform-docs/terraform"
 )
 
 //go:embed templates/markdown_document*.tmpl
diff --git a/internal/format/markdown_document_test.go b/internal/format/markdown_document_test.go
index e90eb5a..3b88081 100644
--- a/internal/format/markdown_document_test.go
+++ b/internal/format/markdown_document_test.go
@@ -16,8 +16,8 @@ import (
 	"github.com/stretchr/testify/assert"
 
 	"github.com/terraform-docs/terraform-docs/internal/print"
-	"github.com/terraform-docs/terraform-docs/internal/terraform"
 	"github.com/terraform-docs/terraform-docs/internal/testutil"
+	"github.com/terraform-docs/terraform-docs/terraform"
 )
 
 func TestMarkdownDocument(t *testing.T) {
diff --git a/internal/format/markdown_table.go b/internal/format/markdown_table.go
index 0baca66..4730596 100644
--- a/internal/format/markdown_table.go
+++ b/internal/format/markdown_table.go
@@ -15,8 +15,8 @@ import (
 	gotemplate "text/template"
 
 	"github.com/terraform-docs/terraform-docs/internal/print"
-	"github.com/terraform-docs/terraform-docs/internal/terraform"
 	"github.com/terraform-docs/terraform-docs/template"
+	"github.com/terraform-docs/terraform-docs/terraform"
 )
 
 //go:embed templates/markdown_table*.tmpl
diff --git a/internal/format/markdown_table_test.go b/internal/format/markdown_table_test.go
index 09f02d4..76c9f89 100644
--- a/internal/format/markdown_table_test.go
+++ b/internal/format/markdown_table_test.go
@@ -16,8 +16,8 @@ import (
 	"github.com/stretchr/testify/assert"
 
 	"github.com/terraform-docs/terraform-docs/internal/print"
-	"github.com/terraform-docs/terraform-docs/internal/terraform"
 	"github.com/terraform-docs/terraform-docs/internal/testutil"
+	"github.com/terraform-docs/terraform-docs/terraform"
 )
 
 func TestMarkdownTable(t *testing.T) {
diff --git a/internal/format/pretty.go b/internal/format/pretty.go
index b6dc634..d4634d4 100644
--- a/internal/format/pretty.go
+++ b/internal/format/pretty.go
@@ -17,8 +17,8 @@ import (
 	gotemplate "text/template"
 
 	"github.com/terraform-docs/terraform-docs/internal/print"
-	"github.com/terraform-docs/terraform-docs/internal/terraform"
 	"github.com/terraform-docs/terraform-docs/template"
+	"github.com/terraform-docs/terraform-docs/terraform"
 )
 
 //go:embed templates/pretty.tmpl
diff --git a/internal/format/pretty_test.go b/internal/format/pretty_test.go
index f2aef2f..9b1f4a7 100644
--- a/internal/format/pretty_test.go
+++ b/internal/format/pretty_test.go
@@ -16,8 +16,8 @@ import (
 	"github.com/stretchr/testify/assert"
 
 	"github.com/terraform-docs/terraform-docs/internal/print"
-	"github.com/terraform-docs/terraform-docs/internal/terraform"
 	"github.com/terraform-docs/terraform-docs/internal/testutil"
+	"github.com/terraform-docs/terraform-docs/terraform"
 )
 
 func TestPretty(t *testing.T) {
diff --git a/internal/format/tfvars_hcl.go b/internal/format/tfvars_hcl.go
index da73c82..5e31ef4 100644
--- a/internal/format/tfvars_hcl.go
+++ b/internal/format/tfvars_hcl.go
@@ -17,9 +17,9 @@ import (
 	gotemplate "text/template"
 
 	"github.com/terraform-docs/terraform-docs/internal/print"
-	"github.com/terraform-docs/terraform-docs/internal/terraform"
 	"github.com/terraform-docs/terraform-docs/internal/types"
 	"github.com/terraform-docs/terraform-docs/template"
+	"github.com/terraform-docs/terraform-docs/terraform"
 )
 
 //go:embed templates/tfvars_hcl.tmpl
diff --git a/internal/format/tfvars_hcl_test.go b/internal/format/tfvars_hcl_test.go
index 0129b26..dc32f4b 100644
--- a/internal/format/tfvars_hcl_test.go
+++ b/internal/format/tfvars_hcl_test.go
@@ -16,8 +16,8 @@ import (
 	"github.com/stretchr/testify/assert"
 
 	"github.com/terraform-docs/terraform-docs/internal/print"
-	"github.com/terraform-docs/terraform-docs/internal/terraform"
 	"github.com/terraform-docs/terraform-docs/internal/testutil"
+	"github.com/terraform-docs/terraform-docs/terraform"
 )
 
 func TestTfvarsHcl(t *testing.T) {
diff --git a/internal/format/tfvars_json.go b/internal/format/tfvars_json.go
index 0f16d5a..31ab08d 100644
--- a/internal/format/tfvars_json.go
+++ b/internal/format/tfvars_json.go
@@ -18,7 +18,7 @@ import (
 	"github.com/iancoleman/orderedmap"
 
 	"github.com/terraform-docs/terraform-docs/internal/print"
-	"github.com/terraform-docs/terraform-docs/internal/terraform"
+	"github.com/terraform-docs/terraform-docs/terraform"
 )
 
 // TfvarsJSON represents Terraform tfvars JSON format.
diff --git a/internal/format/tfvars_json_test.go b/internal/format/tfvars_json_test.go
index a8277c7..07c28b1 100644
--- a/internal/format/tfvars_json_test.go
+++ b/internal/format/tfvars_json_test.go
@@ -16,8 +16,8 @@ import (
 	"github.com/stretchr/testify/assert"
 
 	"github.com/terraform-docs/terraform-docs/internal/print"
-	"github.com/terraform-docs/terraform-docs/internal/terraform"
 	"github.com/terraform-docs/terraform-docs/internal/testutil"
+	"github.com/terraform-docs/terraform-docs/terraform"
 )
 
 func TestTfvarsJson(t *testing.T) {
diff --git a/internal/format/toml.go b/internal/format/toml.go
index 239d861..59e9e47 100644
--- a/internal/format/toml.go
+++ b/internal/format/toml.go
@@ -17,7 +17,7 @@ import (
 	"github.com/BurntSushi/toml"
 
 	"github.com/terraform-docs/terraform-docs/internal/print"
-	"github.com/terraform-docs/terraform-docs/internal/terraform"
+	"github.com/terraform-docs/terraform-docs/terraform"
 )
 
 // TOML represents TOML format.
diff --git a/internal/format/toml_test.go b/internal/format/toml_test.go
index 3143d7c..a79edb9 100644
--- a/internal/format/toml_test.go
+++ b/internal/format/toml_test.go
@@ -16,8 +16,8 @@ import (
 	"github.com/stretchr/testify/assert"
 
 	"github.com/terraform-docs/terraform-docs/internal/print"
-	"github.com/terraform-docs/terraform-docs/internal/terraform"
 	"github.com/terraform-docs/terraform-docs/internal/testutil"
+	"github.com/terraform-docs/terraform-docs/terraform"
 )
 
 func TestToml(t *testing.T) {
diff --git a/internal/format/xml.go b/internal/format/xml.go
index 53daba4..eb612a0 100644
--- a/internal/format/xml.go
+++ b/internal/format/xml.go
@@ -15,7 +15,7 @@ import (
 	"strings"
 
 	"github.com/terraform-docs/terraform-docs/internal/print"
-	"github.com/terraform-docs/terraform-docs/internal/terraform"
+	"github.com/terraform-docs/terraform-docs/terraform"
 )
 
 // XML represents XML format.
diff --git a/internal/format/xml_test.go b/internal/format/xml_test.go
index c8c78c8..a332a6d 100644
--- a/internal/format/xml_test.go
+++ b/internal/format/xml_test.go
@@ -16,8 +16,8 @@ import (
 	"github.com/stretchr/testify/assert"
 
 	"github.com/terraform-docs/terraform-docs/internal/print"
-	"github.com/terraform-docs/terraform-docs/internal/terraform"
 	"github.com/terraform-docs/terraform-docs/internal/testutil"
+	"github.com/terraform-docs/terraform-docs/terraform"
 )
 
 func TestXml(t *testing.T) {
diff --git a/internal/format/yaml.go b/internal/format/yaml.go
index d5b1a6c..97fbb3f 100644
--- a/internal/format/yaml.go
+++ b/internal/format/yaml.go
@@ -17,7 +17,7 @@ import (
 	"gopkg.in/yaml.v3"
 
 	"github.com/terraform-docs/terraform-docs/internal/print"
-	"github.com/terraform-docs/terraform-docs/internal/terraform"
+	"github.com/terraform-docs/terraform-docs/terraform"
 )
 
 // YAML represents YAML format.
diff --git a/internal/format/yaml_test.go b/internal/format/yaml_test.go
index 4d60c41..b065b05 100644
--- a/internal/format/yaml_test.go
+++ b/internal/format/yaml_test.go
@@ -16,8 +16,8 @@ import (
 	"github.com/stretchr/testify/assert"
 
 	"github.com/terraform-docs/terraform-docs/internal/print"
-	"github.com/terraform-docs/terraform-docs/internal/terraform"
 	"github.com/terraform-docs/terraform-docs/internal/testutil"
+	"github.com/terraform-docs/terraform-docs/terraform"
 )
 
 func TestYaml(t *testing.T) {
diff --git a/internal/print/engine.go b/internal/print/engine.go
index 661cd29..321e66c 100644
--- a/internal/print/engine.go
+++ b/internal/print/engine.go
@@ -11,7 +11,7 @@ the root directory of this source tree.
 package print
 
 import (
-	"github.com/terraform-docs/terraform-docs/internal/terraform"
+	"github.com/terraform-docs/terraform-docs/terraform"
 )
 
 // Engine represents a format engine (e.g. json, table, yaml, ...)
diff --git a/internal/print/settings.go b/internal/print/settings.go
index 49d4f35..25943fc 100644
--- a/internal/print/settings.go
+++ b/internal/print/settings.go
@@ -12,7 +12,7 @@ package print
 
 import (
 	printsdk "github.com/terraform-docs/plugin-sdk/print"
-	"github.com/terraform-docs/terraform-docs/internal/terraform"
+	"github.com/terraform-docs/terraform-docs/terraform"
 )
 
 // Settings represents all settings.
diff --git a/internal/terraform/doc.go b/internal/terraform/doc.go
deleted file mode 100644
index 015a6db..0000000
--- a/internal/terraform/doc.go
+++ /dev/null
@@ -1,12 +0,0 @@
-/*
-Copyright 2021 The terraform-docs Authors.
-
-Licensed under the MIT license (the "License"); you may not
-use this file except in compliance with the License.
-
-You may obtain a copy of the License at the LICENSE file in
-the root directory of this source tree.
-*/
-
-// Package terraform is the representation of a Terraform Module
-package terraform
diff --git a/internal/testutil/testing.go b/internal/testutil/testing.go
index 416dc33..46fd7a8 100644
--- a/internal/testutil/testing.go
+++ b/internal/testutil/testing.go
@@ -16,7 +16,7 @@ import (
 	"path/filepath"
 	"runtime"
 
-	"github.com/terraform-docs/terraform-docs/internal/terraform"
+	"github.com/terraform-docs/terraform-docs/terraform"
 )
 
 // GetModule returns 'example' Module
diff --git a/scripts/docs/generate.go b/scripts/docs/generate.go
index 03a6459..512672b 100644
--- a/scripts/docs/generate.go
+++ b/scripts/docs/generate.go
@@ -25,7 +25,7 @@ import (
 	"github.com/terraform-docs/terraform-docs/cmd"
 	"github.com/terraform-docs/terraform-docs/internal/format"
 	"github.com/terraform-docs/terraform-docs/internal/print"
-	"github.com/terraform-docs/terraform-docs/internal/terraform"
+	"github.com/terraform-docs/terraform-docs/terraform"
 )
 
 // These are practiaclly a copy/paste of https://github.com/spf13/cobra/blob/master/doc/md_docs.go
diff --git a/template/doc.go b/template/doc.go
index a39f8bf..e003672 100644
--- a/template/doc.go
+++ b/template/doc.go
@@ -17,8 +17,8 @@ the root directory of this source tree.
 //         gotemplate "text/template"
 //
 //         "github.com/terraform-docs/terraform-docs/internal/print"
-//         "github.com/terraform-docs/terraform-docs/internal/terraform"
 //         "github.com/terraform-docs/terraform-docs/template"
+//         "github.com/terraform-docs/terraform-docs/terraform"
 //     )
 //
 //     const mainTpl =`
diff --git a/template/template.go b/template/template.go
index 00b4bfb..49462f4 100644
--- a/template/template.go
+++ b/template/template.go
@@ -17,8 +17,8 @@ import (
 	gotemplate "text/template"
 
 	"github.com/terraform-docs/terraform-docs/internal/print"
-	"github.com/terraform-docs/terraform-docs/internal/terraform"
 	"github.com/terraform-docs/terraform-docs/internal/types"
+	"github.com/terraform-docs/terraform-docs/terraform"
 )
 
 // Item represents a named templated which can reference other named templated too.
diff --git a/template/template_test.go b/template/template_test.go
index 147d8ff..e451a0b 100644
--- a/template/template_test.go
+++ b/template/template_test.go
@@ -21,8 +21,8 @@ import (
 	"github.com/stretchr/testify/assert"
 
 	"github.com/terraform-docs/terraform-docs/internal/print"
-	"github.com/terraform-docs/terraform-docs/internal/terraform"
 	"github.com/terraform-docs/terraform-docs/internal/types"
+	"github.com/terraform-docs/terraform-docs/terraform"
 )
 
 func TestTemplateRender(t *testing.T) {
diff --git a/terraform/doc.go b/terraform/doc.go
new file mode 100644
index 0000000..1708dc8
--- /dev/null
+++ b/terraform/doc.go
@@ -0,0 +1,52 @@
+/*
+Copyright 2021 The terraform-docs Authors.
+
+Licensed under the MIT license (the "License"); you may not
+use this file except in compliance with the License.
+
+You may obtain a copy of the License at the LICENSE file in
+the root directory of this source tree.
+*/
+
+// Package terraform is the representation of a Terraform Module.
+//
+// It contains:
+//
+// • Header:        Module header found in shape of multi line '*.tf' comments or an entire file
+//
+// • Footer:        Module footer found in shape of multi line '*.tf' comments or an entire file
+//
+// • Inputs:        List of input 'variables' extracted from the Terraform module .tf files
+//
+// • ModuleCalls:   List of 'modules' extracted from the Terraform module .tf files
+//
+// • Outputs:       List of 'outputs' extracted from Terraform module .tf files
+//
+// • Providers:     List of 'providers' extracted from resources used in Terraform module
+//
+// • Requirements:  List of 'requirements' extracted from the Terraform module .tf files
+//
+// • Resources:     List of 'resources' extracted from the Terraform module .tf files
+//
+// Usage
+//
+//     options := &terraform.Options{
+//         Path:           "./examples",
+//         ShowHeader:     true,
+//         HeaderFromFile: "main.tf",
+//         ShowFooter:     true,
+//         FooterFromFile: "footer.md",
+//         SortBy: &terraform.SortBy{
+//             Name: true,
+//         },
+//         ReadComments: true,
+//     }
+//
+//     tfmodule, err := terraform.LoadWithOptions(options)
+//     if err != nil {
+//         log.Fatal(err)
+//     }
+//
+//     ...
+//
+package terraform
diff --git a/internal/terraform/input.go b/terraform/input.go
similarity index 64%
rename from internal/terraform/input.go
rename to terraform/input.go
index 5f84873..78a4842 100644
--- a/internal/terraform/input.go
+++ b/terraform/input.go
@@ -14,6 +14,7 @@ import (
 	"bytes"
 	"encoding/json"
 	"fmt"
+	"sort"
 	"strings"
 
 	terraformsdk "github.com/terraform-docs/plugin-sdk/terraform"
@@ -57,40 +58,37 @@ func (i *Input) HasDefault() bool {
 	return i.Default.HasDefault() || !i.Required
 }
 
-type inputsSortedByName []*Input
-
-func (a inputsSortedByName) Len() int           { return len(a) }
-func (a inputsSortedByName) Swap(i, j int)      { a[i], a[j] = a[j], a[i] }
-func (a inputsSortedByName) Less(i, j int) bool { return a[i].Name < a[j].Name }
-
-type inputsSortedByRequired []*Input
-
-func (a inputsSortedByRequired) Len() int      { return len(a) }
-func (a inputsSortedByRequired) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
-func (a inputsSortedByRequired) Less(i, j int) bool {
-	if a[i].HasDefault() == a[j].HasDefault() {
-		return a[i].Name < a[j].Name
-	}
-	return !a[i].HasDefault() && a[j].HasDefault()
+func sortInputsByName(x []*Input) {
+	sort.Slice(x, func(i, j int) bool {
+		return x[i].Name < x[j].Name
+	})
 }
 
-type inputsSortedByPosition []*Input
-
-func (a inputsSortedByPosition) Len() int      { return len(a) }
-func (a inputsSortedByPosition) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
-func (a inputsSortedByPosition) Less(i, j int) bool {
-	return a[i].Position.Filename < a[j].Position.Filename || a[i].Position.Line < a[j].Position.Line
+func sortInputsByRequired(x []*Input) {
+	sort.Slice(x, func(i, j int) bool {
+		if x[i].HasDefault() == x[j].HasDefault() {
+			return x[i].Name < x[j].Name
+		}
+		return !x[i].HasDefault() && x[j].HasDefault()
+	})
 }
 
-type inputsSortedByType []*Input
+func sortInputsByPosition(x []*Input) {
+	sort.Slice(x, func(i, j int) bool {
+		if x[i].Position.Filename == x[j].Position.Filename {
+			return x[i].Position.Line < x[j].Position.Line
+		}
+		return x[i].Position.Filename < x[j].Position.Filename
+	})
+}
 
-func (a inputsSortedByType) Len() int      { return len(a) }
-func (a inputsSortedByType) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
-func (a inputsSortedByType) Less(i, j int) bool {
-	if a[i].Type == a[j].Type {
-		return a[i].Name < a[j].Name
-	}
-	return a[i].Type < a[j].Type
+func sortInputsByType(x []*Input) {
+	sort.Slice(x, func(i, j int) bool {
+		if x[i].Type == x[j].Type {
+			return x[i].Name < x[j].Name
+		}
+		return x[i].Type < x[j].Type
+	})
 }
 
 type inputs []*Input
diff --git a/internal/terraform/input_test.go b/terraform/input_test.go
similarity index 97%
rename from internal/terraform/input_test.go
rename to terraform/input_test.go
index e3c2313..10414f8 100644
--- a/internal/terraform/input_test.go
+++ b/terraform/input_test.go
@@ -11,7 +11,6 @@ the root directory of this source tree.
 package terraform
 
 import (
-	"sort"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
@@ -214,19 +213,19 @@ func TestInputValue(t *testing.T) {
 func TestInputsSorted(t *testing.T) {
 	inputs := sampleInputs()
 	tests := map[string]struct {
-		sortType sort.Interface
+		sortType func([]*Input)
 		expected []string
 	}{
 		"ByName": {
-			sortType: inputsSortedByName(inputs),
+			sortType: sortInputsByName,
 			expected: []string{"a", "b", "c", "d", "e", "f"},
 		},
 		"ByRequired": {
-			sortType: inputsSortedByRequired(inputs),
+			sortType: sortInputsByRequired,
 			expected: []string{"b", "d", "a", "c", "e", "f"},
 		},
 		"ByPosition": {
-			sortType: inputsSortedByPosition(inputs),
+			sortType: sortInputsByPosition,
 			expected: []string{"a", "d", "e", "b", "c", "f"},
 		},
 	}
@@ -234,7 +233,7 @@ func TestInputsSorted(t *testing.T) {
 		t.Run(name, func(t *testing.T) {
 			assert := assert.New(t)
 
-			sort.Sort(tt.sortType)
+			tt.sortType(inputs)
 
 			actual := make([]string, len(inputs))
 
diff --git a/internal/terraform/module.go b/terraform/load.go
similarity index 73%
rename from internal/terraform/module.go
rename to terraform/load.go
index c651149..d6f6117 100644
--- a/internal/terraform/module.go
+++ b/terraform/load.go
@@ -12,7 +12,6 @@ package terraform
 
 import (
 	"encoding/json"
-	"encoding/xml"
 	"errors"
 	"fmt"
 	"io/ioutil"
@@ -25,94 +24,11 @@ import (
 
 	"github.com/hashicorp/hcl/v2/hclsimple"
 
-	terraformsdk "github.com/terraform-docs/plugin-sdk/terraform"
 	"github.com/terraform-docs/terraform-config-inspect/tfconfig"
 	"github.com/terraform-docs/terraform-docs/internal/reader"
 	"github.com/terraform-docs/terraform-docs/internal/types"
 )
 
-// Module represents a Terraform module. It consists of
-//
-// - Header       ('header' json key):        Module header found in shape of multi line '*.tf' comments or an entire file
-// - Footer       ('footer' json key):        Module footer found in shape of multi line '*.tf' comments or an entire file
-// - Inputs       ('inputs' json key):        List of input 'variables' extracted from the Terraform module .tf files
-// - ModuleCalls  ('modules' json key):       List of 'modules' extracted from the Terraform module .tf files
-// - Outputs      ('outputs' json key):       List of 'outputs' extracted from Terraform module .tf files
-// - Providers    ('providers' json key):     List of 'providers' extracted from resources used in Terraform module
-// - Requirements ('requirements' json key):  List of 'requirements' extracted from the Terraform module .tf files
-// - Resources    ('resources' json key):     List of 'resources' extracted from the Terraform module .tf files
-type Module struct {
-	XMLName xml.Name `json:"-" toml:"-" xml:"module" yaml:"-"`
-
-	Header       string         `json:"header" toml:"header" xml:"header" yaml:"header"`
-	Footer       string         `json:"footer" toml:"footer" xml:"footer" yaml:"footer"`
-	Inputs       []*Input       `json:"inputs" toml:"inputs" xml:"inputs>input" yaml:"inputs"`
-	ModuleCalls  []*ModuleCall  `json:"modules" toml:"modules" xml:"modules>module" yaml:"modules"`
-	Outputs      []*Output      `json:"outputs" toml:"outputs" xml:"outputs>output" yaml:"outputs"`
-	Providers    []*Provider    `json:"providers" toml:"providers" xml:"providers>provider" yaml:"providers"`
-	Requirements []*Requirement `json:"requirements" toml:"requirements" xml:"requirements>requirement" yaml:"requirements"`
-	Resources    []*Resource    `json:"resources" toml:"resources" xml:"resources>resource" yaml:"resources"`
-
-	RequiredInputs []*Input `json:"-" toml:"-" xml:"-" yaml:"-"`
-	OptionalInputs []*Input `json:"-" toml:"-" xml:"-" yaml:"-"`
-}
-
-// HasHeader indicates if the module has header.
-func (m *Module) HasHeader() bool {
-	return len(m.Header) > 0
-}
-
-// HasFooter indicates if the module has footer.
-func (m *Module) HasFooter() bool {
-	return len(m.Footer) > 0
-}
-
-// HasInputs indicates if the module has inputs.
-func (m *Module) HasInputs() bool {
-	return len(m.Inputs) > 0
-}
-
-// HasModuleCalls indicates if the module has modulecalls.
-func (m *Module) HasModuleCalls() bool {
-	return len(m.ModuleCalls) > 0
-}
-
-// HasOutputs indicates if the module has outputs.
-func (m *Module) HasOutputs() bool {
-	return len(m.Outputs) > 0
-}
-
-// HasProviders indicates if the module has providers.
-func (m *Module) HasProviders() bool {
-	return len(m.Providers) > 0
-}
-
-// HasRequirements indicates if the module has requirements.
-func (m *Module) HasRequirements() bool {
-	return len(m.Requirements) > 0
-}
-
-// HasResources indicates if the module has resources.
-func (m *Module) HasResources() bool {
-	return len(m.Resources) > 0
-}
-
-// Convert internal Module to its equivalent in plugin-sdk
-func (m *Module) Convert() terraformsdk.Module {
-	return terraformsdk.NewModule(
-		terraformsdk.WithHeader(m.Header),
-		terraformsdk.WithFooter(m.Footer),
-		terraformsdk.WithInputs(inputs(m.Inputs).convert()),
-		terraformsdk.WithModuleCalls(modulecalls(m.ModuleCalls).convert()),
-		terraformsdk.WithOutputs(outputs(m.Outputs).convert()),
-		terraformsdk.WithProviders(providers(m.Providers).convert()),
-		terraformsdk.WithRequirements(requirements(m.Requirements).convert()),
-		terraformsdk.WithResources(resources(m.Resources).convert()),
-		terraformsdk.WithRequiredInputs(inputs(m.RequiredInputs).convert()),
-		terraformsdk.WithOptionalInputs(inputs(m.OptionalInputs).convert()),
-	)
-}
-
 // LoadWithOptions returns new instance of Module with all the inputs and
 // outputs discovered from provided 'path' containing Terraform config
 func LoadWithOptions(options *Options) (*Module, error) {
@@ -578,47 +494,47 @@ func sortItems(tfmodule *Module, sortby *SortBy) { //nolint:gocyclo
 	// inputs
 	switch {
 	case sortby.Type:
-		sort.Sort(inputsSortedByType(tfmodule.Inputs))
-		sort.Sort(inputsSortedByType(tfmodule.RequiredInputs))
-		sort.Sort(inputsSortedByType(tfmodule.OptionalInputs))
+		sortInputsByType(tfmodule.Inputs)
+		sortInputsByType(tfmodule.RequiredInputs)
+		sortInputsByType(tfmodule.OptionalInputs)
 	case sortby.Required:
-		sort.Sort(inputsSortedByRequired(tfmodule.Inputs))
-		sort.Sort(inputsSortedByRequired(tfmodule.RequiredInputs))
-		sort.Sort(inputsSortedByRequired(tfmodule.OptionalInputs))
+		sortInputsByRequired(tfmodule.Inputs)
+		sortInputsByRequired(tfmodule.RequiredInputs)
+		sortInputsByRequired(tfmodule.OptionalInputs)
 	case sortby.Name:
-		sort.Sort(inputsSortedByName(tfmodule.Inputs))
-		sort.Sort(inputsSortedByName(tfmodule.RequiredInputs))
-		sort.Sort(inputsSortedByName(tfmodule.OptionalInputs))
+		sortInputsByName(tfmodule.Inputs)
+		sortInputsByName(tfmodule.RequiredInputs)
+		sortInputsByName(tfmodule.OptionalInputs)
 	default:
-		sort.Sort(inputsSortedByPosition(tfmodule.Inputs))
-		sort.Sort(inputsSortedByPosition(tfmodule.RequiredInputs))
-		sort.Sort(inputsSortedByPosition(tfmodule.OptionalInputs))
+		sortInputsByPosition(tfmodule.Inputs)
+		sortInputsByPosition(tfmodule.RequiredInputs)
+		sortInputsByPosition(tfmodule.OptionalInputs)
 	}
 
 	// outputs
 	if sortby.Name || sortby.Required || sortby.Type {
-		sort.Sort(outputsSortedByName(tfmodule.Outputs))
+		sortOutputsByName(tfmodule.Outputs)
 	} else {
-		sort.Sort(outputsSortedByPosition(tfmodule.Outputs))
+		sortOutputsByPosition(tfmodule.Outputs)
 	}
 
 	// providers
 	if sortby.Name || sortby.Required || sortby.Type {
-		sort.Sort(providersSortedByName(tfmodule.Providers))
+		sortProvidersByName(tfmodule.Providers)
 	} else {
-		sort.Sort(providersSortedByPosition(tfmodule.Providers))
+		sortProvidersByPosition(tfmodule.Providers)
 	}
 
 	// resources (always sorted)
-	sort.Sort(resourcesSortedByType(tfmodule.Resources))
+	sortResourcesByType(tfmodule.Resources)
 
 	// modules
 	switch {
 	case sortby.Name || sortby.Required:
-		sort.Sort(modulecallsSortedByName(tfmodule.ModuleCalls))
+		sortModulecallsByName(tfmodule.ModuleCalls)
 	case sortby.Type:
-		sort.Sort(modulecallsSortedBySource(tfmodule.ModuleCalls))
+		sortModulecallsBySource(tfmodule.ModuleCalls)
 	default:
-		sort.Sort(modulecallsSortedByPosition(tfmodule.ModuleCalls))
+		sortModulecallsByPosition(tfmodule.ModuleCalls)
 	}
 }
diff --git a/internal/terraform/module_test.go b/terraform/load_test.go
similarity index 99%
rename from internal/terraform/module_test.go
rename to terraform/load_test.go
index 785a92e..7f0c394 100644
--- a/internal/terraform/module_test.go
+++ b/terraform/load_test.go
@@ -722,7 +722,6 @@ func TestLoadProviders(t *testing.T) {
 
 			for _, p := range providers {
 				actual = append(actual, p.FullName()+"-"+string(p.Version))
-				providers[0].FullName()
 			}
 			sort.Strings(actual)
 
diff --git a/terraform/module.go b/terraform/module.go
new file mode 100644
index 0000000..caa6a91
--- /dev/null
+++ b/terraform/module.go
@@ -0,0 +1,90 @@
+/*
+Copyright 2021 The terraform-docs Authors.
+
+Licensed under the MIT license (the "License"); you may not
+use this file except in compliance with the License.
+
+You may obtain a copy of the License at the LICENSE file in
+the root directory of this source tree.
+*/
+
+package terraform
+
+import (
+	"encoding/xml"
+
+	terraformsdk "github.com/terraform-docs/plugin-sdk/terraform"
+)
+
+// Module represents a Terraform module. It consists of
+type Module struct {
+	XMLName xml.Name `json:"-" toml:"-" xml:"module" yaml:"-"`
+
+	Header       string         `json:"header" toml:"header" xml:"header" yaml:"header"`
+	Footer       string         `json:"footer" toml:"footer" xml:"footer" yaml:"footer"`
+	Inputs       []*Input       `json:"inputs" toml:"inputs" xml:"inputs>input" yaml:"inputs"`
+	ModuleCalls  []*ModuleCall  `json:"modules" toml:"modules" xml:"modules>module" yaml:"modules"`
+	Outputs      []*Output      `json:"outputs" toml:"outputs" xml:"outputs>output" yaml:"outputs"`
+	Providers    []*Provider    `json:"providers" toml:"providers" xml:"providers>provider" yaml:"providers"`
+	Requirements []*Requirement `json:"requirements" toml:"requirements" xml:"requirements>requirement" yaml:"requirements"`
+	Resources    []*Resource    `json:"resources" toml:"resources" xml:"resources>resource" yaml:"resources"`
+
+	RequiredInputs []*Input `json:"-" toml:"-" xml:"-" yaml:"-"`
+	OptionalInputs []*Input `json:"-" toml:"-" xml:"-" yaml:"-"`
+}
+
+// HasHeader indicates if the module has header.
+func (m *Module) HasHeader() bool {
+	return len(m.Header) > 0
+}
+
+// HasFooter indicates if the module has footer.
+func (m *Module) HasFooter() bool {
+	return len(m.Footer) > 0
+}
+
+// HasInputs indicates if the module has inputs.
+func (m *Module) HasInputs() bool {
+	return len(m.Inputs) > 0
+}
+
+// HasModuleCalls indicates if the module has modulecalls.
+func (m *Module) HasModuleCalls() bool {
+	return len(m.ModuleCalls) > 0
+}
+
+// HasOutputs indicates if the module has outputs.
+func (m *Module) HasOutputs() bool {
+	return len(m.Outputs) > 0
+}
+
+// HasProviders indicates if the module has providers.
+func (m *Module) HasProviders() bool {
+	return len(m.Providers) > 0
+}
+
+// HasRequirements indicates if the module has requirements.
+func (m *Module) HasRequirements() bool {
+	return len(m.Requirements) > 0
+}
+
+// HasResources indicates if the module has resources.
+func (m *Module) HasResources() bool {
+	return len(m.Resources) > 0
+}
+
+// Convert internal Module to its equivalent in plugin-sdk
+func (m *Module) Convert() terraformsdk.Module {
+	return terraformsdk.NewModule(
+		terraformsdk.WithHeader(m.Header),
+		terraformsdk.WithFooter(m.Footer),
+		terraformsdk.WithInputs(inputs(m.Inputs).convert()),
+		terraformsdk.WithModuleCalls(modulecalls(m.ModuleCalls).convert()),
+		terraformsdk.WithOutputs(outputs(m.Outputs).convert()),
+		terraformsdk.WithProviders(providers(m.Providers).convert()),
+		terraformsdk.WithRequirements(requirements(m.Requirements).convert()),
+		terraformsdk.WithResources(resources(m.Resources).convert()),
+		terraformsdk.WithRequiredInputs(inputs(m.RequiredInputs).convert()),
+		terraformsdk.WithOptionalInputs(inputs(m.OptionalInputs).convert()),
+	)
+}
diff --git a/internal/terraform/modulecall.go b/terraform/modulecall.go
similarity index 57%
rename from internal/terraform/modulecall.go
rename to terraform/modulecall.go
index e4335f5..d96f4bd 100644
--- a/internal/terraform/modulecall.go
+++ b/terraform/modulecall.go
@@ -12,6 +12,7 @@ package terraform
 
 import (
 	"fmt"
+	"sort"
 
 	terraformsdk "github.com/terraform-docs/plugin-sdk/terraform"
 )
@@ -32,29 +33,25 @@ func (mc *ModuleCall) FullName() string {
 	return mc.Source
 }
 
-type modulecallsSortedByName []*ModuleCall
-
-func (a modulecallsSortedByName) Len() int           { return len(a) }
-func (a modulecallsSortedByName) Swap(i, j int)      { a[i], a[j] = a[j], a[i] }
-func (a modulecallsSortedByName) Less(i, j int) bool { return a[i].Name < a[j].Name }
-
-type modulecallsSortedBySource []*ModuleCall
-
-func (a modulecallsSortedBySource) Len() int      { return len(a) }
-func (a modulecallsSortedBySource) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
-func (a modulecallsSortedBySource) Less(i, j int) bool {
-	if a[i].Source == a[j].Source {
-		return a[i].Name < a[j].Name
-	}
-	return a[i].Source < a[j].Source
+func sortModulecallsByName(x []*ModuleCall) {
+	sort.Slice(x, func(i, j int) bool {
+		return x[i].Name < x[j].Name
+	})
 }
 
-type modulecallsSortedByPosition []*ModuleCall
+func sortModulecallsBySource(x []*ModuleCall) {
+	sort.Slice(x, func(i, j int) bool {
+		if x[i].Source == x[j].Source {
+			return x[i].Name < x[j].Name
+		}
+		return x[i].Source < x[j].Source
+	})
+}
 
-func (a modulecallsSortedByPosition) Len() int      { return len(a) }
-func (a modulecallsSortedByPosition) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
-func (a modulecallsSortedByPosition) Less(i, j int) bool {
-	return a[i].Position.Filename < a[j].Position.Filename || a[i].Position.Line < a[j].Position.Line
+func sortModulecallsByPosition(x []*ModuleCall) {
+	sort.Slice(x, func(i, j int) bool {
+		return x[i].Position.Filename < x[j].Position.Filename || x[i].Position.Line < x[j].Position.Line
+	})
 }
 
 type modulecalls []*ModuleCall
diff --git a/internal/terraform/modulecall_test.go b/terraform/modulecall_test.go
similarity index 91%
rename from internal/terraform/modulecall_test.go
rename to terraform/modulecall_test.go
index 3ac53e2..eec0289 100644
--- a/internal/terraform/modulecall_test.go
+++ b/terraform/modulecall_test.go
@@ -11,7 +11,6 @@ the root directory of this source tree.
 package terraform
 
 import (
-	"sort"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
@@ -49,19 +48,19 @@ func TestModulecallName(t *testing.T) {
 func TestModulecallSort(t *testing.T) {
 	modules := sampleModulecalls()
 	tests := map[string]struct {
-		sortType sort.Interface
+		sortType func([]*ModuleCall)
 		expected []string
 	}{
 		"ByName": {
-			sortType: modulecallsSortedByName(modules),
+			sortType: sortModulecallsByName,
 			expected: []string{"a", "b", "c", "d", "e", "f"},
 		},
 		"BySource": {
-			sortType: modulecallsSortedBySource(modules),
+			sortType: sortModulecallsBySource,
 			expected: []string{"f", "d", "c", "e", "a", "b"},
 		},
 		"ByPosition": {
-			sortType: modulecallsSortedByPosition(modules),
+			sortType: sortModulecallsByPosition,
 			expected: []string{"b", "c", "a", "e", "d", "f"},
 		},
 	}
@@ -69,7 +68,7 @@ func TestModulecallSort(t *testing.T) {
 		t.Run(name, func(t *testing.T) {
 			assert := assert.New(t)
 
-			sort.Sort(tt.sortType)
+			tt.sortType(modules)
 
 			actual := make([]string, len(modules))
 
diff --git a/internal/terraform/options.go b/terraform/options.go
similarity index 100%
rename from internal/terraform/options.go
rename to terraform/options.go
diff --git a/internal/terraform/options_test.go b/terraform/options_test.go
similarity index 100%
rename from internal/terraform/options_test.go
rename to terraform/options_test.go
diff --git a/internal/terraform/output.go b/terraform/output.go
similarity index 89%
rename from internal/terraform/output.go
rename to terraform/output.go
index f8c7f9a..2bd87f4 100644
--- a/internal/terraform/output.go
+++ b/terraform/output.go
@@ -15,6 +15,7 @@ import (
 	"encoding/json"
 	"encoding/xml"
 	"fmt"
+	"sort"
 
 	terraformsdk "github.com/terraform-docs/plugin-sdk/terraform"
 	"github.com/terraform-docs/terraform-docs/internal/types"
@@ -128,18 +129,19 @@ type output struct {
 	Value     interface{} `json:"value"`
 }
 
-type outputsSortedByName []*Output
+func sortOutputsByName(x []*Output) {
+	sort.Slice(x, func(i, j int) bool {
+		return x[i].Name < x[j].Name
+	})
+}
 
-func (a outputsSortedByName) Len() int           { return len(a) }
-func (a outputsSortedByName) Swap(i, j int)      { a[i], a[j] = a[j], a[i] }
-func (a outputsSortedByName) Less(i, j int) bool { return a[i].Name < a[j].Name }
-
-type outputsSortedByPosition []*Output
-
-func (a outputsSortedByPosition) Len() int      { return len(a) }
-func (a outputsSortedByPosition) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
-func (a outputsSortedByPosition) Less(i, j int) bool {
-	return a[i].Position.Filename < a[j].Position.Filename || a[i].Position.Line < a[j].Position.Line
+func sortOutputsByPosition(x []*Output) {
+	sort.Slice(x, func(i, j int) bool {
+		if x[i].Position.Filename == x[j].Position.Filename {
+			return x[i].Position.Line < x[j].Position.Line
+		}
+		return x[i].Position.Filename < x[j].Position.Filename
+	})
 }
 
 type outputs []*Output
diff --git a/internal/terraform/output_test.go b/terraform/output_test.go
similarity index 98%
rename from internal/terraform/output_test.go
rename to terraform/output_test.go
index d42f614..a9e9819 100644
--- a/internal/terraform/output_test.go
+++ b/terraform/output_test.go
@@ -14,7 +14,6 @@ import (
 	"bytes"
 	"encoding/xml"
 	"reflect"
-	"sort"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
@@ -463,15 +462,15 @@ func sampleOutputs() []Output {
 func TestOutputsSort(t *testing.T) {
 	outputs := sampleOutputsForSort()
 	tests := map[string]struct {
-		sortType sort.Interface
+		sortType func([]*Output)
 		expected []string
 	}{
 		"ByName": {
-			sortType: outputsSortedByName(outputs),
+			sortType: sortOutputsByName,
 			expected: []string{"a", "b", "c", "d", "e"},
 		},
 		"ByPosition": {
-			sortType: outputsSortedByPosition(outputs),
+			sortType: sortOutputsByPosition,
 			expected: []string{"d", "a", "e", "b", "c"},
 		},
 	}
@@ -479,7 +478,7 @@ func TestOutputsSort(t *testing.T) {
 		t.Run(name, func(t *testing.T) {
 			assert := assert.New(t)
 
-			sort.Sort(tt.sortType)
+			tt.sortType(outputs)
 
 			actual := make([]string, len(outputs))
 
diff --git a/internal/terraform/position.go b/terraform/position.go
similarity index 100%
rename from internal/terraform/position.go
rename to terraform/position.go
diff --git a/internal/terraform/provider.go b/terraform/provider.go
similarity index 68%
rename from internal/terraform/provider.go
rename to terraform/provider.go
index c411267..f5e2893 100644
--- a/internal/terraform/provider.go
+++ b/terraform/provider.go
@@ -12,6 +12,7 @@ package terraform
 
 import (
 	"fmt"
+	"sort"
 
 	terraformsdk "github.com/terraform-docs/plugin-sdk/terraform"
 	"github.com/terraform-docs/terraform-docs/internal/types"
@@ -33,20 +34,22 @@ func (p *Provider) FullName() string {
 	return p.Name
 }
 
-type providersSortedByName []*Provider
-
-func (a providersSortedByName) Len() int      { return len(a) }
-func (a providersSortedByName) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
-func (a providersSortedByName) Less(i, j int) bool {
-	return a[i].Name < a[j].Name || (a[i].Name == a[j].Name && a[i].Alias < a[j].Alias)
+func sortProvidersByName(x []*Provider) {
+	sort.Slice(x, func(i, j int) bool {
+		if x[i].Name == x[j].Name {
+			return x[i].Name == x[j].Name && x[i].Alias < x[j].Alias
+		}
+		return x[i].Name < x[j].Name
+	})
 }
 
-type providersSortedByPosition []*Provider
-
-func (a providersSortedByPosition) Len() int      { return len(a) }
-func (a providersSortedByPosition) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
-func (a providersSortedByPosition) Less(i, j int) bool {
-	return a[i].Position.Filename < a[j].Position.Filename || a[i].Position.Line < a[j].Position.Line
+func sortProvidersByPosition(x []*Provider) {
+	sort.Slice(x, func(i, j int) bool {
+		if x[i].Position.Filename == x[j].Position.Filename {
+			return x[i].Position.Line < x[j].Position.Line
+		}
+		return x[i].Position.Filename < x[j].Position.Filename
+	})
 }
 
 type providers []*Provider
diff --git a/internal/terraform/provider_test.go b/terraform/provider_test.go
similarity index 94%
rename from internal/terraform/provider_test.go
rename to terraform/provider_test.go
index 50b60ab..7cda6b4 100644
--- a/internal/terraform/provider_test.go
+++ b/terraform/provider_test.go
@@ -11,7 +11,6 @@ the root directory of this source tree.
 package terraform
 
 import (
-	"sort"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
@@ -54,15 +53,15 @@ func TestProviderName(t *testing.T) {
 func TestProvidersSort(t *testing.T) {
 	providers := sampleProviders()
 	tests := map[string]struct {
-		sortType sort.Interface
+		sortType func([]*Provider)
 		expected []string
 	}{
 		"ByName": {
-			sortType: providersSortedByName(providers),
+			sortType: sortProvidersByName,
 			expected: []string{"a", "b", "c", "d", "d.a", "e", "e.a"},
 		},
 		"ByPosition": {
-			sortType: providersSortedByPosition(providers),
+			sortType: sortProvidersByPosition,
 			expected: []string{"e.a", "b", "d", "d.a", "a", "e", "c"},
 		},
 	}
@@ -70,7 +69,7 @@ func TestProvidersSort(t *testing.T) {
 		t.Run(name, func(t *testing.T) {
 			assert := assert.New(t)
 
-			sort.Sort(tt.sortType)
+			tt.sortType(providers)
 
 			actual := make([]string, len(providers))
 
diff --git a/internal/terraform/requirement.go b/terraform/requirement.go
similarity index 100%
rename from internal/terraform/requirement.go
rename to terraform/requirement.go
diff --git a/internal/terraform/resource.go b/terraform/resource.go
similarity index 87%
rename from internal/terraform/resource.go
rename to terraform/resource.go
index 4c2825a..42b7077 100644
--- a/internal/terraform/resource.go
+++ b/terraform/resource.go
@@ -12,6 +12,7 @@ package terraform
 
 import (
 	"fmt"
+	"sort"
 	"strings"
 
 	terraformsdk "github.com/terraform-docs/plugin-sdk/terraform"
@@ -67,18 +68,16 @@ func (r *Resource) URL() string {
 	return fmt.Sprintf("https://registry.terraform.io/providers/%s/%s/docs/%s/%s", r.ProviderSource, r.Version, kind, r.Type)
 }
 
-type resourcesSortedByType []*Resource
-
-func (a resourcesSortedByType) Len() int      { return len(a) }
-func (a resourcesSortedByType) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
-func (a resourcesSortedByType) Less(i, j int) bool {
-	if a[i].Mode == a[j].Mode {
-		if a[i].Spec() == a[j].Spec() {
-			return a[i].Name <= a[j].Name
+func sortResourcesByType(x []*Resource) {
+	sort.Slice(x, func(i, j int) bool {
+		if x[i].Mode == x[j].Mode {
+			if x[i].Spec() == x[j].Spec() {
+				return x[i].Name <= x[j].Name
+			}
+			return x[i].Spec() < x[j].Spec()
 		}
-		return a[i].Spec() < a[j].Spec()
-	}
-	return a[i].Mode > a[j].Mode
+		return x[i].Mode > x[j].Mode
+	})
 }
 
 type resources []*Resource
diff --git a/internal/terraform/resource_test.go b/terraform/resource_test.go
similarity index 98%
rename from internal/terraform/resource_test.go
rename to terraform/resource_test.go
index 2569c87..c506c4c 100644
--- a/internal/terraform/resource_test.go
+++ b/terraform/resource_test.go
@@ -11,7 +11,6 @@ the root directory of this source tree.
 package terraform
 
 import (
-	"sort"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
@@ -134,7 +133,7 @@ func TestResourcesSortedByType(t *testing.T) {
 	assert := assert.New(t)
 	resources := sampleResources()
 
-	sort.Sort(resourcesSortedByType(resources))
+	sortResourcesByType(resources)
 
 	expected := []string{"a_a.a", "a_f.f", "b_b.b", "b_d.d", "c_c.c", "c_e.c", "c_e.d", "c_e_x.c", "c_e_x.d", "z_z.z", "a_a.a", "z_z.z", "a_a.a", "z_z.z"}
 	actual := make([]string, len(resources))
@@ -150,7 +149,7 @@ func TestResourcesSortedByTypeAndMode(t *testing.T) {
 	assert := assert.New(t)
 	resources := sampleResources()
 
-	sort.Sort(resourcesSortedByType(resources))
+	sortResourcesByType(resources)
 
 	expected := []string{"a_a.a (r)", "a_f.f (r)", "b_b.b (r)", "b_d.d (r)", "c_c.c (r)", "c_e.c (r)", "c_e.d (r)", "c_e_x.c (r)", "c_e_x.d (r)", "z_z.z (r)", "a_a.a (d)", "z_z.z (d)", "a_a.a", "z_z.z"}
 	actual := make([]string, len(resources))
diff --git a/internal/terraform/testdata/empty-header/main.tf b/terraform/testdata/empty-header/main.tf
similarity index 100%
rename from internal/terraform/testdata/empty-header/main.tf
rename to terraform/testdata/empty-header/main.tf
diff --git a/internal/terraform/testdata/expected/full-example-mainTf-Header.golden b/terraform/testdata/expected/full-example-mainTf-Header.golden
similarity index 100%
rename from internal/terraform/testdata/expected/full-example-mainTf-Header.golden
rename to terraform/testdata/expected/full-example-mainTf-Header.golden
diff --git a/internal/terraform/testdata/full-example/doc.adoc b/terraform/testdata/full-example/doc.adoc
similarity index 100%
rename from internal/terraform/testdata/full-example/doc.adoc
rename to terraform/testdata/full-example/doc.adoc
diff --git a/internal/terraform/testdata/full-example/doc.md b/terraform/testdata/full-example/doc.md
similarity index 100%
rename from internal/terraform/testdata/full-example/doc.md
rename to terraform/testdata/full-example/doc.md
diff --git a/internal/terraform/testdata/full-example/doc.tf b/terraform/testdata/full-example/doc.tf
similarity index 100%
rename from internal/terraform/testdata/full-example/doc.tf
rename to terraform/testdata/full-example/doc.tf
diff --git a/internal/terraform/testdata/full-example/doc.txt b/terraform/testdata/full-example/doc.txt
similarity index 100%
rename from internal/terraform/testdata/full-example/doc.txt
rename to terraform/testdata/full-example/doc.txt
diff --git a/internal/terraform/testdata/full-example/main.tf b/terraform/testdata/full-example/main.tf
similarity index 100%
rename from internal/terraform/testdata/full-example/main.tf
rename to terraform/testdata/full-example/main.tf
diff --git a/internal/terraform/testdata/full-example/output-values.json b/terraform/testdata/full-example/output-values.json
similarity index 100%
rename from internal/terraform/testdata/full-example/output-values.json
rename to terraform/testdata/full-example/output-values.json
diff --git a/internal/terraform/testdata/full-example/outputs.tf b/terraform/testdata/full-example/outputs.tf
similarity index 100%
rename from internal/terraform/testdata/full-example/outputs.tf
rename to terraform/testdata/full-example/outputs.tf
diff --git a/internal/terraform/testdata/full-example/variables.tf b/terraform/testdata/full-example/variables.tf
similarity index 100%
rename from internal/terraform/testdata/full-example/variables.tf
rename to terraform/testdata/full-example/variables.tf
diff --git a/internal/terraform/testdata/inputs-crlf/variables.tf b/terraform/testdata/inputs-crlf/variables.tf
similarity index 100%
rename from internal/terraform/testdata/inputs-crlf/variables.tf
rename to terraform/testdata/inputs-crlf/variables.tf
diff --git a/internal/terraform/testdata/inputs-lf/variables.tf b/terraform/testdata/inputs-lf/variables.tf
similarity index 100%
rename from internal/terraform/testdata/inputs-lf/variables.tf
rename to terraform/testdata/inputs-lf/variables.tf
diff --git a/internal/terraform/testdata/no-inputs/variables.tf b/terraform/testdata/no-inputs/variables.tf
similarity index 100%
rename from internal/terraform/testdata/no-inputs/variables.tf
rename to terraform/testdata/no-inputs/variables.tf
diff --git a/internal/terraform/testdata/no-modulecalls/main.tf b/terraform/testdata/no-modulecalls/main.tf
similarity index 100%
rename from internal/terraform/testdata/no-modulecalls/main.tf
rename to terraform/testdata/no-modulecalls/main.tf
diff --git a/internal/terraform/testdata/no-optional-inputs/variables.tf b/terraform/testdata/no-optional-inputs/variables.tf
similarity index 100%
rename from internal/terraform/testdata/no-optional-inputs/variables.tf
rename to terraform/testdata/no-optional-inputs/variables.tf
diff --git a/internal/terraform/testdata/no-outputs/outputs.tf b/terraform/testdata/no-outputs/outputs.tf
similarity index 100%
rename from internal/terraform/testdata/no-outputs/outputs.tf
rename to terraform/testdata/no-outputs/outputs.tf
diff --git a/internal/terraform/testdata/no-providers/main.tf b/terraform/testdata/no-providers/main.tf
similarity index 100%
rename from internal/terraform/testdata/no-providers/main.tf
rename to terraform/testdata/no-providers/main.tf
diff --git a/internal/terraform/testdata/no-required-inputs/variables.tf b/terraform/testdata/no-required-inputs/variables.tf
similarity index 100%
rename from internal/terraform/testdata/no-required-inputs/variables.tf
rename to terraform/testdata/no-required-inputs/variables.tf
diff --git a/internal/terraform/testdata/read-comments/variables.tf b/terraform/testdata/read-comments/variables.tf
similarity index 100%
rename from internal/terraform/testdata/read-comments/variables.tf
rename to terraform/testdata/read-comments/variables.tf
diff --git a/internal/terraform/testdata/with-lock-file/.terraform.lock.hcl b/terraform/testdata/with-lock-file/.terraform.lock.hcl
similarity index 100%
rename from internal/terraform/testdata/with-lock-file/.terraform.lock.hcl
rename to terraform/testdata/with-lock-file/.terraform.lock.hcl
diff --git a/internal/terraform/testdata/with-lock-file/main.tf b/terraform/testdata/with-lock-file/main.tf
similarity index 100%
rename from internal/terraform/testdata/with-lock-file/main.tf
rename to terraform/testdata/with-lock-file/main.tf
diff --git a/internal/terraform/testdata/with-lock-file/outputs.tf b/terraform/testdata/with-lock-file/outputs.tf
similarity index 100%
rename from internal/terraform/testdata/with-lock-file/outputs.tf
rename to terraform/testdata/with-lock-file/outputs.tf
diff --git a/internal/terraform/testdata/with-lock-file/variables.tf b/terraform/testdata/with-lock-file/variables.tf
similarity index 100%
rename from internal/terraform/testdata/with-lock-file/variables.tf
rename to terraform/testdata/with-lock-file/variables.tf