class AWS::EMR::JobFlowCollection

def _each_item options = {}, &block
  resp = client.describe_job_flows(@filters.merge(options))
  resp.data[:job_flows].each do |details|
    job_flow = JobFlow.new_from(
      :describe_job_flows,
      details,
      details[:job_flow_id],
      :config => config)
    yield(job_flow)
  end
end