code: def zeros(self):
      return {
          name: self.zeros_fn(input.shape, dtype=input.dtype)
          for name, input in self.items()
      }
  
file_path: gluonts/src/gluonts/model/inputs.py
imports: from collections import UserDict
  from dataclasses import dataclass
  from operator import attrgetter
  from typing import Any, Callable, Dict, Type, Tuple
  from toolz import valmap
label_desc: Use image node_id 3 for calling the InputSpec obj's underlying member method code with example usage: obj.zeros() and returns: unknown