GitLab action

class GitLabAction:
    """
    
    GitLab action
    
    in the context of GitLab API client, an "action" encapsulates the necessary
    information to change (commit) a file in a repository
    
    three (3) attributes are mandatory:
    
    - action: a verb describing the operation on a file
    
    - file_path: the path of the file within GitLab
    
    - content: a string-encoded version of the file onto which the action is
      exectued  
    
    """
    def __init__(self, file_path: Union[str, Path], content: str):
        self._action = ("update",)
        self._file_path = (file_path,)
        self._content = content

    def to_json(self):
        return {
            "action": self._action,
            "file_path": str(self._file_path),
            "content": self._content,
        }