code: def generate_input(dim0, dim1, dim2):
      input_data = np.random.rand(dim0, dim1, dim2).astype(
          "f"
      )  # astype() should be removed
      return input_data
  
imports: import unittest
  import numpy
  import os
  import shutil
  import tempfile
  import itertools
  import coremltools
  from coremltools._deps import _HAS_KERAS_TF, _HAS_KERAS2_TF
  from coremltools.models.utils import _macos_version, _is_macos
  import pytest
label_desc: Use image node_id 2 for calling a global function with example usage: generate_input(dim0, dim1, dim2) and returns: input_data