def tender_id=(tender_id)
      if tender_id.nil?
        fail ArgumentError, "tender_id cannot be nil"
      end

      if tender_id.to_s.length > 192
        fail ArgumentError, "invalid value for 'tender_id', the character length must be smaller than or equal to 192."
      end

      if tender_id.to_s.length < 1
        fail ArgumentError, "invalid value for 'tender_id', the character length must be great than or equal to 1."
      end

      @tender_id = tender_id
    end
def tender_id=(tender_id)
      if tender_id.nil?
        fail ArgumentError, "tender_id cannot be nil"
      end

      if tender_id.to_s.length > 192
        fail ArgumentError, "invalid value for 'tender_id', the character length must be smaller than or equal to 192."
      end

      if tender_id.to_s.length < 1
        fail ArgumentError, "invalid value for 'tender_id', the character length must be great than or equal to 1."
      end

      @tender_id = tender_id
    end
Custom attribute writer method with validation
 @param [Object] tender_id Value to be assigned