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.
msg += " found in %s" % " -> ".join(context)
                    msg += " defines elements as %s but it is valid only when value of parameter type is list" % _elements
                    self.reporter.error(
                        path=self.object_path,
                        code='parameter-invalid-elements',
                        msg=msg
                    )
            arg_default = None
            if 'default' in data and not is_empty(data['default']):
                try:
                    with CaptureStd():
                        arg_default = _type_checker(data['default'])
                except (Exception, SystemExit):
                    msg = "Argument '%s' in argument_spec" % arg
                    if context:
                        msg += " found in %s" % " -> ".join(context)
                    msg += " defines default as (%r) but this is incompatible with parameter type %r" % (data['default'], _type)
                    self.reporter.error(
                        path=self.object_path,
                        code='incompatible-default-type',
                        msg=msg
                    )
                    continue
            doc_options_args = []
            for alias in sorted(set([arg] + list(aliases))):
                if alias in doc_options:
                    doc_options_args.append(alias)
            if len(doc_options_args) == 0:
                
                doc_options_arg = {}