class_docstr: Mixin containing operation common for both backend and leaderboard api clients
code: def _get_client_config_args(api_token):
      return dict(X_Neptune_Api_Token=api_token)
  
file_path: neptune-client/src/neptune/legacy/internal/api_clients/hosted_api_clients/mixins.py
imports: import logging
  import socket
  import sys
  import click
  from bravado.client import SwaggerClient
  from bravado_core.formatter import SwaggerFormat
  from packaging import version
  from six.moves import urllib
  from neptune.legacy.exceptions import CannotResolveHostname, DeprecatedApiToken, UnsupportedClientVersion
  from neptune.legacy.internal.api_clients.client_config import ClientConfig, MultipartConfig
  from neptune.legacy.internal.api_clients.hosted_api_clients.utils import legacy_with_api_exceptions_handler
label_desc: Use image node_id 2 for calling the HostedNeptuneMixin obj's underlying member method code with example usage: obj._get_client_config_args(api_token) and returns: dict