Used to filter the workflow executions in visibility APIs by their workflowId .

 public ListClosedWorkflowExecutionsRequest WithExecutionFilter(WorkflowExecutionFilter executionFilter)
 {
     this.executionFilter = executionFilter;
     return this;
 }
 public CountOpenWorkflowExecutionsRequest WithExecutionFilter(WorkflowExecutionFilter executionFilter)
 {
     this.executionFilter = executionFilter;
     return this;
 }