code: def TensorListLength(context, node):
      ls = context[node.inputs[0]]
      length = mb.list_length(ls=ls, name=node.name)
      context.add(node.name, length)
  
file_path: turicreate/src/external/coremltools_wrap/coremltools/coremltools/converters/mil/frontend/tensorflow2/ops.py
imports: import numpy
  from coremltools.converters.mil.frontend.tensorflow.ops import _transpose_NHWC_to_NCHW, _transpose_NCHW_to_NHWC
  from coremltools.converters.mil.frontend.tensorflow.ops import *
  from coremltools.converters.mil.frontend.tensorflow.dialect_ops import *
label_desc: Use image node_id 7 for calling a global function with example usage: TensorListLength(context, node) without return types