code: def histogram(self, *args, **kwargs):
      # Map new name to the old name.
      if "buckets" in kwargs:
          kwargs["bucket_count"] = kwargs.pop("buckets")
      return summary_pb2.Summary.FromString(
          summary.op(*args, **kwargs).numpy()
      )
  
imports: import glob
  import os
  import numpy
  import tensorflow
  from tensorboard.compat import tf2
  from tensorboard.compat.proto import summary_pb2
  from tensorboard.plugins.histogram import metadata
  from tensorboard.plugins.histogram import summary
  from tensorboard.util import tensor_util
label_desc: Use image node_id 1 for calling the SummaryV1OpTest obj's underlying member method code with example usage: obj.histogram() and returns: summary_pb2