isTicketValid() {
      return this.isTicketValidForPreview() &&
          (!this.copies_.isCapabilityAvailable() || this.copies_.isValid()) &&
          (!this.pageRange_.isCapabilityAvailable() ||
           this.pageRange_.isValid());
    }
/**
     * @return {boolean} {@code true} if the stored print ticket is valid,
     *     {@code false} otherwise.
     */
@return {boolean}  true if the stored print ticket is valid,
false otherwise.
@return { boolean } true if the stored print ticket is valid false otherwise .
isTicketValid() {
      return this.isTicketValidForPreview() &&
          (!this.copies_.isCapabilityAvailable() || this.copies_.isValid()) &&
          (!this.pageRange_.isCapabilityAvailable() ||
           this.pageRange_.isValid());
    }
isTicketValid ( ) { return this . isTicketValidForPreview ( ) && ( ! this . copies_ . isCapabilityAvailable ( ) || this . copies_ . isValid ( ) ) && ( ! this . pageRange_ . isCapabilityAvailable ( ) || this . pageRange_ . isValid ( ) ) ; }
@return {boolean} {@code true} if the stored print ticket is valid,
     {@code false} otherwise.
@return { boolean } { @code true } if the stored print ticket is valid { @code false } otherwise .