code: def in_cwd():
      
      configs = []
  
      for filename in os.listdir(os.getcwd()):
          if filename.startswith('.tmuxp') and is_config_file(filename):
              configs.append(filename)
  
      return configs
docs: Return list of configs in current working directory.
  
      If filename is ``.tmuxp.py``, ``.tmuxp.json``, ``.tmuxp.yaml``.
  
      Returns
      -------
      list
          configs in current working directory