# File lib/amq/protocol/client.rb, line 1504
        def self.encode(channel, prefetch_size, prefetch_count, global)
          buffer = ""
          buffer << @packed_indexes
          buffer << [prefetch_size].pack(PACK_UINT32)
          buffer << [prefetch_count].pack(PACK_UINT16)
          bit_buffer = 0
          bit_buffer = bit_buffer | (1 << 0) if global
          buffer << [bit_buffer].pack(PACK_CHAR)
          MethodFrame.new(buffer, channel)
        end