def flags=(values)
      val = 0
      FRAME_FLAGS_MAP.values_at(*values).each { |c|
        val |= c if c
      }
      @flags_value = val
    end
def flags=(values)
      val = 0
      FRAME_FLAGS_MAP.values_at(*values).each { |c|
        val |= c if c
      }
      @flags_value = val
    end
Sets the frame flags.
 @param values [Array<Symbol>] The flags.