code: def specify_int64(indices, inverse_indices, counts):  # type: ignore
      return (
          np.array(indices, dtype=np.int64),
          np.array(inverse_indices, dtype=np.int64),
          np.array(counts, dtype=np.int64),
      )
  
file_path: onnx/onnx/backend/test/case/node/unique.py
imports: import numpy
  import onnx
  from onnx.backend.test.case.base import Base
  from onnx.backend.test.case.node import expect
label_desc: Use image node_id 1 for calling a global function with example usage: specify_int64(indices, inverse_indices, counts) and returns: np,  np,  np