# File lib/aws/simple_workflow/activity_task.rb, line 25
      def initialize domain, data, options = {}

        @domain = domain

        @task_token = data['taskToken']
        @activity_id = data['activityId']
        @started_event_id = data['startedEventId']
        @input = data['input']

        name = data['activityType']['name']
        version = data['activityType']['version']
        @activity_type = domain.activity_types[name,version]

        workflow_id = data['workflowExecution']['workflowId']
        run_id = data['workflowExecution']['runId']
        @workflow_execution = domain.workflow_executions[workflow_id,run_id]

        super

      end