code: public Origination withRoutes(OriginationRoute... routes) {
          if (this.routes == null) {
              setRoutes(new java.util.ArrayList<OriginationRoute>(routes.length));
          }
          for (OriginationRoute ele : routes) {
              this.routes.add(ele);
          }
          return this;
      }
docs: <p>
  The call distribution properties defined for your SIP hosts. Valid range: Minimum value of 1. Maximum value of
  20.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setRoutes(java.util.Collection)} or {@link #withRoutes(java.util.Collection)} if you want to override the
  existing values.
  </p>
  
  @param routes
  The call distribution properties defined for your SIP hosts. Valid range: Minimum value of 1. Maximum
  value of 20.
  @return Returns a reference to this object so that method calls can be chained together.