in lib/skywalking/segment_ref.lua [104:115]
function _M.transform(ref)
local refBuilder = {}
refBuilder.refType = 'CrossProcess'
refBuilder.traceId = ref.trace_id
refBuilder.parentTraceSegmentId = ref.segment_id
refBuilder.parentSpanId = ref.span_id
refBuilder.parentService = ref.parent_service
refBuilder.parentServiceInstance = ref.parent_service_instance
refBuilder.parentEndpoint = ref.parent_endpoint
refBuilder.networkAddressUsedAtPeer = ref.address_used_at_client
return refBuilder
end