code: @BetaApi
    public final Operation getGlobalOperation(String operation) {
  
      GetGlobalOperationHttpRequest request =
          GetGlobalOperationHttpRequest.newBuilder().setOperation(operation).build();
      return getGlobalOperation(request);
    }
docs: Retrieves the specified Operations resource. Gets a list of operations by making a list()
  request.
  
  <p>Sample code:
  
  <pre><code>
  try (GlobalOperationClient globalOperationClient = GlobalOperationClient.create()) {
  ProjectGlobalOperationName operation = ProjectGlobalOperationName.of("[PROJECT]", "[OPERATION]");
  Operation response = globalOperationClient.getGlobalOperation(operation.toString());
  }
  </code></pre>
  
  @param operation Name of the Operations resource to return.
  @throws com.google.api.gax.rpc.ApiException if the remote call fails