https://github.com/ansible/ansible/blob/1706d35fc476e36fcced25435c2f1c2401536376/test/lib/ansible_test/_util/controller/sanity/validate-modules/validate_modules/main.py#L414

When a module is in place to provide documentation for an action, it should be allowed to have a doc string.

Without a docstring users of pydocstring will need to suppress:

```
************* Module plugins.modules.git_away
plugins/modules/git_away.py:1:0: C0114: Missing module docstring (missing-module-docstring)
************* Module plugins.modules.git_here
plugins/modules/git_here.py:1:0: C0114: Missing module docstring (missing-module-docstring)
```

With a doc string the module is treated as a "real" module and fails sanity:

```
ansible-module-not-initialized: Execution of the module did not result in initialization of AnsibleModule
```

PEP257 suggests modules should have a docstring, and is generally considered a good practice to inform future developers of the purpose of the file and can be used for documentation generation as well.
if powershell:
            return
        for line_no, line in enumerate(self.text.splitlines()):
            typekeyword = TYPE_REGEX.match(line)
            if typekeyword:
                
                self.reporter.error(
                    path=self.object_path,
                    code='unidiomatic-typecheck',
                    msg=('Type comparison using type() found. '
                         'Use isinstance() instead'),
                    line=line_no + 1
                )
    def _check_for_sys_exit(self):
        
        if 'sys.exit' not in self.text:
            return
        for line_no, line in enumerate(self.text.splitlines()):
            sys_exit_usage = SYS_EXIT_REGEX.match(line)
            if sys_exit_usage:
                
                self.reporter.error(
                    path=self.object_path,
                    code='use-fail-json-not-sys-exit',
                    msg='sys.exit() call found. Should be exit_json/fail_json',
                    line=line_no + 1
                )
    def _check_gpl3_header(self):