class_docstr: Temporarily changes the attr of an op.
class_docstr_tok: ["Temporarily","changes","the","attr","of","an","op","."]
code: def __enter__(self):
      self.older_attr = self.op.get_attr(self.attr_key)
      self.op.reset_attr(self.attr_key)
      self.op.set_attr(self.attr_key, self.attr_value)
      return self
  
imports: from tvm import relay
label_desc: Use image node_id 2 for calling the TempOpAttr obj's underlying member method code with example usage: obj.__enter__() and returns: self