class ContractInvocationHandler implements InvocationHandler, ClientPrepareable, SignerPreparable {

  @Override
  public void prepareClient(final AergoClient aergoClient) {
    assertNotNull(aergoClient, "AergoClient must not null");
    logger.trace("Prepare client: {}", aergoClient);
    this.clientCabinet.set(aergoClient);
  }

}