RECORD_ATTR_TRACE_ID = "dd.trace_id"
RECORD_ATTR_SPAN_ID = "dd.span_id"
RECORD_ATTR_ENV = "dd.env"
RECORD_ATTR_VERSION = "dd.version"
RECORD_ATTR_SERVICE = "dd.service"
RECORD_ATTR_VALUE_ZERO = "0"
RECORD_ATTR_VALUE_EMPTY = ""