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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def add_note(self, note):
 """ Wrapper method to add a note The method can be passed the note as a dict with the `content` property set, which is then directly send to the web service for creation. Alternatively, only the body as string can also be passed. In this case the parameter is used as `content` for the new note. Arguments: - note (dict or string):
 the note to add Returns: A tuple `(note, status)` - note (dict):
 the newly created note - status (int):
 0 on success and -1 otherwise """


        if type(note) == str:
            return self.update_note({"content": note})
        elif (type(note) == dict) and "content" in note:
            return self.update_note(note)
        else:
            return "No string or valid note.", -1