text: """Global registry for OpDefs."""
  
  from tensorflow.core.framework import op_def_pb2
  
  
  _registered_ops = {}
  
  
  def register_op_list(op_list):
    """Register all the ops in an op_def_pb2.OpList."""
    if not isinstance(op_list, op_def_pb2.OpList):
      raise TypeError("%s is %s, not an op_def_pb2.OpList" %
                      (op_list, type(op_list)))
    for op_def in op_list.op:
      if op_def.name in _registered_ops:
        assert _registered_ops[op_def.name] == op_def
      else:
        _registered_ops[op_def.name] = op_def
  
  
  def get_registered_ops():
    """Returns a dictionary mapping names to OpDefs."""
    return _registered_ops
  