code: def MonsterExtraStartDvecVector(builder, numElems: int) -> int:
      return builder.StartVector(8, numElems, 8)
  
imports: import flatbuffers
  from flatbuffers.compat import import_numpy
  from typing import Any
label_desc: Use image node_id 21 for calling a global function with example usage: MonsterExtraStartDvecVector(builder, numElems) and returns: builder