code: def SchemaAddFileExt(builder, fileExt):
      builder.PrependUOffsetTRelativeSlot(
          3, flatbuffers.number_types.UOffsetTFlags.py_type(fileExt), 0
      )
  
imports: import flatbuffers
  from flatbuffers.compat import import_numpy
label_desc: Use image node_id 13 for calling a global function with example usage: SchemaAddFileExt(builder, fileExt) without return types