code: def zeros(shape, dtype=float32, ctx=_default_context):
      return _zeros(shape, dtype, ctx)
  
file_path: dgl/tests/backend/__init__.py
imports: import importlib
  import os
  import sys
  import numpy
  from dgl.backend import *
  from dgl.nn import *
  from .None import backend_unittest
label_desc: Use image node_id 3 for calling a global function with example usage: zeros(shape, dtype, ctx) and returns: _zeros