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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 VerifyCipherSignature(self, remote_public_key):
 """Verifies the signature on the encrypted cipher block. This method returns True if the signature verifies correctly with the key given. Args: remote_public_key: The remote public key. Returns: None Raises: rdf_crypto.VerificationError: A signature and a key were both given but verification fails. """

    if self.cipher_metadata.signature and remote_public_key:

      stats_collector_instance.Get().IncrementCounter("grr_rsa_operations")
      remote_public_key.Verify(self.serialized_cipher,
                               self.cipher_metadata.signature)
      return True