docstr: Log a parameter dict for the given run.
code: def log_param(self, param):
      """Log a parameter dict for the given run."""
      url = self.base_url + "/runs/log-parameter"
      payload = {
          "run_id": self.run_id,
          "key": param["key"],
          "value": param["value"],
      }
      r = requests.post(url, json=payload)
      return r.status_code
  
file_path: mlflow/examples/rest_api/mlflow_tracking_rest_api.py
imports: import argparse
  import os
  import pwd
  import requests
  from mlflow.utils.time import get_current_time_millis
label_desc: Use image node_id 4 for calling the MLflowTrackingRestApi obj's underlying member method code with example usage: obj.log_param(param) and returns: r