code: public HTTPRequest withHeaders(HTTPHeader... headers) {
          if (this.headers == null) {
              setHeaders(new java.util.ArrayList<HTTPHeader>(headers.length));
          }
          for (HTTPHeader ele : headers) {
              this.headers.add(ele);
          }
          return this;
      }
docs: <p>
  A complex type that contains two values for each header in the sampled web request: the name of the header and
  the value of the header.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setHeaders(java.util.Collection)} or {@link #withHeaders(java.util.Collection)} if you want to override
  the existing values.
  </p>
  
  @param headers
  A complex type that contains two values for each header in the sampled web request: the name of the header
  and the value of the header.
  @return Returns a reference to this object so that method calls can be chained together.