class_docstr: dask-compatible wrapper that executes a batch of tasks
class_docstr_tok: ["dask-compatible","wrapper","that","executes","a","batch","of","tasks"]
code: def __repr__(self):
      descr = f"batch_of_{self._funcname}_{self._num_tasks}_calls"
      if self._mixed:
          descr = "mixed_" + descr
      return descr
  
imports: from __future__ import print_function, division, absolute_import
  import asyncio
  import concurrent.futures
  import contextlib
  import time
  from uuid import uuid4
  import weakref
  from .parallel import parallel_config
  from .parallel import AutoBatchingMixin, ParallelBackendBase
label_desc: Use image node_id 3 for calling the Batch obj's underlying member method code with example usage: obj.__repr__() and returns: descr