code: public CreateRobotApplicationResult withSources(Source... sources) {
          if (this.sources == null) {
              setSources(new java.util.ArrayList<Source>(sources.length));
          }
          for (Source ele : sources) {
              this.sources.add(ele);
          }
          return this;
      }
docs: <p>
  The sources of the robot application.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setSources(java.util.Collection)} or {@link #withSources(java.util.Collection)} if you want to override
  the existing values.
  </p>
  
  @param sources
  The sources of the robot application.
  @return Returns a reference to this object so that method calls can be chained together.