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 not self.collection:
                        existing_doc = self._check_for_new_args(doc)
                        self._check_version_added(doc, existing_doc)
            if not bool(doc_info['EXAMPLES']['value']):
                if self.plugin_type in PLUGINS_WITH_EXAMPLES:
                    self.reporter.error(
                        path=self.object_path,
                        code='missing-examples',
                        msg='No EXAMPLES provided'
                    )
            elif self.plugin_type in PLUGINS_WITH_YAML_EXAMPLES:
                _doc, errors, traces = parse_yaml(doc_info['EXAMPLES']['value'],
                                                  doc_info['EXAMPLES']['lineno'],
                                                  self.name, 'EXAMPLES', load_all=True,
                                                  ansible_loader=True)
                for error in errors:
                    self.reporter.error(
                        path=self.object_path,
                        code='invalid-examples',
                        **error
                    )
                for trace in traces:
                    self.reporter.trace(
                        path=self.object_path,
                        tracebk=trace
                    )
            if not bool(doc_info['RETURN']['value']):
                if self.plugin_type in PLUGINS_WITH_RETURN_VALUES:
                    if self._is_new_module():
                        self.reporter.error(