# File lib/phusion_passenger/message_client.rb, line 90
        def pool_detach_process_by_key(detach_key)
                write("detach_process_by_key", detach_key)
                check_security_response
                result = read
                if result.nil?
                        raise EOFError
                else
                        return result.first == "true"
                end
        end