Trace class:
  Stream class (ID 0):
    Supports packets: Yes
    Packets have beginning default clock snapshot: No
    Packets have end default clock snapshot: No
    Supports discarded events: No
    Supports discarded packets: Yes
    Discarded packets have default clock snapshots: No
    Event class `yo` (ID 0):
      Payload field class: Structure (2 members):
        tag: Unsigned enumeration (8-bit, Base 10, 28 mappings):
          __Bool: [25]
          __Complex: [26]
          __Imaginary: [27]
          _align: [0]
          _callsite: [1]
          _char: [3]
          _clock: [4]
          _const: [2]
          _double: [5]
          _enum: [6]
          _env: [7]
          _event: [8]
          _float: [10]
          _floating_point: [9]
          _int: [12]
          _integer: [11]
          _long: [13]
          _short: [14]
          _signed: [15]
          _stream: [16]
          _string: [17]
          _struct: [18]
          _trace: [19]
          _typealias: [20]
          _typedef: [21]
          _unsigned: [22]
          _variant: [23]
          _void: [24]
        var: Variant (unsigned integer selector) (28 options, Selector field path [Event payload: 0]):
          align: [0]: String
          callsite: [1]: String
          const: [2]: String
          char: [3]: String
          clock: [4]: String
          double: [5]: String
          enum: [6]: String
          env: [7]: String
          event: [8]: String
          floating_point: [9]: String
          float: [10]: String
          integer: [11]: String
          int: [12]: String
          long: [13]: String
          short: [14]: String
          signed: [15]: String
          stream: [16]: String
          string: [17]: String
          struct: [18]: String
          trace: [19]: String
          typealias: [20]: String
          typedef: [21]: String
          unsigned: [22]: String
          variant: [23]: String
          void: [24]: String
          _Bool: [25]: String
          _Complex: [26]: String
          _Imaginary: [27]: String

{Trace 0, Stream class ID 0, Stream ID 0}
Stream beginning:
  Trace:
    Stream (ID 0, Class ID 0)

{Trace 0, Stream class ID 0, Stream ID 0}
Packet beginning

{Trace 0, Stream class ID 0, Stream ID 0}
Event `yo` (Class ID 0):
  Payload:
    tag: 1
    var: Daniel Lavoie

{Trace 0, Stream class ID 0, Stream ID 0}
Packet end

{Trace 0, Stream class ID 0, Stream ID 0}
Stream end