public CountOpenWorkflowExecutionsRequest withTypeFilter(WorkflowTypeFilter typeFilter) {
        setTypeFilter(typeFilter);
        return this;
    }
<p>
Specifies the type of the workflow executions to be counted.
</p>
<note>
<p>
<code>executionFilter</code>, <code>typeFilter</code> and <code>tagFilter</code> are mutually exclusive. You can
specify at most one of these in a request.
</p>
</note>

@param typeFilter
       Specifies the type of the workflow executions to be counted.</p> <note>
       <p>
       <code>executionFilter</code>, <code>typeFilter</code> and <code>tagFilter</code> are mutually exclusive.
       You can specify at most one of these in a request.
       </p>
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-simpleworkflow/src/main/java/com/amazonaws/services/simpleworkflow/model/CountOpenWorkflowExecutionsRequest.java