Event.Data
val stream_start : (t, Stream_start.t Ctypes.structure) ufield
val document_start : (t, Document_start.t Ctypes.structure) ufield
val document_end : (t, Document_end.t Ctypes.structure) ufield
val mapping_start : (t, Mapping_start.t Ctypes.structure) ufield
val sequence_start : (t, Sequence_start.t Ctypes.structure) ufield