code: def get_url(endpoint: str) -> str:
      return urljoin("https://api.cohere.ai", endpoint)
  
file_path: H2O/h2o_hf/helm/src/helm/proxy/clients/cohere_client.py
imports: import json
  import requests
  from typing import List, Dict
  from urllib.parse import urljoin
  from helm.common.cache import Cache, CacheConfig
  from helm.common.request import EMBEDDING_UNAVAILABLE_REQUEST_RESULT, Request, RequestResult, Sequence, Token
  from helm.common.tokenization_request import TokenizationRequest, TokenizationRequestResult, DecodeRequest, DecodeRequestResult, TokenizationToken
  from helm.proxy.models import get_models_by_organization
  from .client import Client, wrap_request_time, truncate_sequence
label_desc: Use image node_id 1 for calling the CohereClient obj's underlying member method code with example usage: obj.get_url(endpoint) and returns: urljoin