        # File lib/em/protocols/memcache.rb, line 56
    56:       def get *keys
    57:         raise ArgumentError unless block_given?
    58:
    59:         callback{
    60:           keys = keys.map{|k| k.to_s.gsub(/\s/,'_') }
    61:           send_data "get #{keys.join(' ')}\r\n"
    62:           @get_cbs << [keys, proc{ |values|
    63:             yield *keys.map{ |k| values[k] }
    64:           }]
    65:         }
    66:       end