docs: def _get_files(self):
          """
          Walk the project directory for tests and returns a list.
  
          :return: list
          """
          excludes = [
              '.git',
              '.tox',
              '.vagrant',
              '.venv',
              os.path.basename(self._config.verifier.directory),
          ]
          generators = [
              util.os_walk(self._config.project_directory, '*.yml', excludes),
              util.os_walk(self._config.project_directory, '*.yaml', excludes),
          ]
  
          return [f for g in generators for f in g]