Custom attributes

Custom attribute methods

Method	Description
nrSetCustomAttribute	Set a custom attribute to be included in the events.
nrSetCustomAttributeList	Set a custom attribute list to be included in the events.

nrSetCustomAttribute(m.nr, "myNum", 123, "CONTENT_START")
      nrSetCustomAttribute(m.nr, "myString", "hello")

attr = {"key0":"val0", "key1":"val1"}
      nrSetCustomAttributeList(m.nr, attr, "CONTENT_HEARTBEAT")