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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 CmdAuthenticate(self, challenge_param, app_param, key_handle, check_only=False):
 """Attempt to obtain an authentication signature. Ask the security key to sign a challenge for a particular key handle in order to authenticate the user. Args: challenge_param: SHA-256 hash of client_data object as a bytes object. app_param: SHA-256 hash of the app id as a bytes object. key_handle: The key handle to use to issue the signature as a bytes object. check_only: If true, only check if key_handle is valid. Returns: A binary structure containing the key handle, attestation, and a signature over that by the attestation key. The precise format is dictated by the FIDO U2F specs. Raises: TUPRequiredError: If check_only is False, a Test of User Precense is required to proceed. If check_only is True, this means the key_handle is valid. InvalidKeyHandleError: The key_handle is not valid for this device. ApduError: Something else went wrong on the device. """

    self.logger.debug('CmdAuthenticate')
    if len(challenge_param) != 32 or len(app_param) != 32:
      raise errors.InvalidRequestError()
    control = 0x07 if check_only else 0x03

    body = bytearray(challenge_param + app_param +
                     bytearray([len(key_handle)]) + key_handle)
    response = self.InternalSendApdu(apdu.CommandApdu(
        0, apdu.CMD_AUTH, control, 0x00, body))
    response.CheckSuccessOrRaise()

    return response.body