class_docstr: Abstract iterator object which supports `ready` method.
class_docstr_tok: ["Abstract","iterator","object","which","supports","`","ready","`","method","."]
docstr: Is there any data waiting for processing.
docstr_tok: ["Is","there","any","data","waiting","for","processing","."]
code: def ready(self) -> bool:
      """Is there any data waiting for processing."""
  
imports: import abc
  import itertools
  from typing import Generic, Iterator, List, Optional, Sequence, TypeVar
  from acme import types
  from acme.utils import metrics
  import dm_env
label_desc: Use image node_id 1 for calling the PrefetchingIterator obj's underlying member method code with example usage: obj.ready() without return types