code: def __str__(self):
      values = [
          "%.10f:%.0f" % (self._bin_scheme.from_bin(i), value)
          for i, value in enumerate(self._hist[:-1])
      ]
      values.append("%s:%s" % (float("inf"), self._hist[-1]))
      return "{%s}" % ",".join(values)
  
file_path: kafka-python/kafka/metrics/stats/histogram.py
imports: from __future__ import absolute_import
  import math
label_desc: Use image node_id 6 for calling the Histogram obj's underlying member method code with example usage: obj.__str__() and returns: unknown