code: def _get_json_config(config_dict):
      """Parses and returns JSON string from python dictionary."""
      json_config = "{}"
      if config_dict is not None:
          json_config = json.dumps(config_dict, sort_keys=True)
      return json_config
  
file_path: tensorboard/tensorboard/plugins/mesh/summary_v2.py
imports: import json
  from tensorboard.compat import tf2
  from tensorboard.compat.proto import summary_pb2
  from tensorboard.plugins.mesh import metadata
  from tensorboard.plugins.mesh import plugin_data_pb2
  from tensorboard.util import tensor_util
label_desc: Use image node_id 2 for calling a global function with example usage: _get_json_config(config_dict) and returns: json_config