class_docstr: Metric object.
class_docstr_tok: ["Metric","object","."]
code: def __init__(self, key, value, timestamp, step):
      self._key = key
      self._value = value
      self._timestamp = timestamp
      self._step = step
  
file_path: mlflow/mlflow/entities/metric.py
imports: from mlflow.entities._mlflow_object import _MLflowObject
  from mlflow.protos.service_pb2 import Metric
label_desc: Use image node_id 1 to create a new Metric object from inherited base classes: _MLflowObject with example: obj = Metric(key, value, timestamp, step)