code: public PostTextRequest withRequestAttributes(java.util.Map<String, String> requestAttributes) {
          setRequestAttributes(requestAttributes);
          return this;
      }
docs: <p>
  Request-specific information passed between Amazon Lex and a client application.
  </p>
  <p>
  The namespace <code>x-amz-lex:</code> is reserved for special attributes. Don't create any request attributes
  with the prefix <code>x-amz-lex:</code>.
  </p>
  <p>
  For more information, see <a
  href="http://docs.aws.amazon.com/lex/latest/dg/context-mgmt.html#context-mgmt-request-attribs">Setting Request
  Attributes</a>.
  </p>
  
  @param requestAttributes
  Request-specific information passed between Amazon Lex and a client application.</p>
  <p>
  The namespace <code>x-amz-lex:</code> is reserved for special attributes. Don't create any request
  attributes with the prefix <code>x-amz-lex:</code>.
  </p>
  <p>
  For more information, see <a
  href="http://docs.aws.amazon.com/lex/latest/dg/context-mgmt.html#context-mgmt-request-attribs">Setting
  Request Attributes</a>.
  @return Returns a reference to this object so that method calls can be chained together.