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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 GetUserById(self, local_id):
 """Gets user info by id. Args: local_id: string, the user id at Gitkit server. Returns: GitkitUser, containing the user info. """

    user = self.rpc_helper.GetAccountInfoById(local_id)
    return GitkitUser.FromApiResponse(user)