code: def TableInFirstNSAddFooUnion(builder, fooUnion):
      builder.PrependUOffsetTRelativeSlot(
          3, flatbuffers.number_types.UOffsetTFlags.py_type(fooUnion), 0
      )
  
imports: import flatbuffers
  from flatbuffers.compat import import_numpy
label_desc: Use image node_id 9 for calling a global function with example usage: TableInFirstNSAddFooUnion(builder, fooUnion) without return types