old_contents: import os
  from bravado.client import SwaggerClient
  from bravado.fido_client import FidoClient
  from bravado.swagger_model import Loader
  
  NODE_ENV = os.environ.get('NODE_ENV')
  GATEWAY_HOST = os.getenv('KERNEL_GATEWAY_HOST')
  DEBUG = bool(
      (NODE_ENV and NODE_ENV == 'development') or
      (GATEWAY_HOST and not 'localhost' in GATEWAY_HOST)
  )
  client = None
  
  def load_client(apikey=None):
      global client
      if client is None:
          # docker containers networking within docker-compose or Fargate task
          host = 'api.mpcontribs.org'
          if apikey is None:
              host = 'api:5000' if DEBUG else 'localhost:5000'
          protocol = 'https' if apikey else 'http'
          spec_url = f'{protocol}://{host}/apispec.json'
          http_client = FidoClient()
          if apikey:
              http_client.set_api_key(
                  host, apikey, param_in='header', param_name='x-api-key'
              )
          loader = Loader(http_client)
          spec_dict = loader.load_spec(spec_url)
          spec_dict['host'] = host
          spec_dict['schemes'] = [protocol]
          client = SwaggerClient.from_spec(
              spec_dict, spec_url, http_client,
              {'validate_responses': False, 'use_models': False}
          )
      return client
  
new_contents: import os
  from bravado.client import SwaggerClient
  from bravado.requests_client import RequestsClient # sync + api key
  from bravado.fido_client import FidoClient # async
  from bravado.swagger_model import Loader
  
  NODE_ENV = os.environ.get('NODE_ENV')
  GATEWAY_HOST = os.getenv('KERNEL_GATEWAY_HOST')
  DEBUG = bool(
      (NODE_ENV and NODE_ENV == 'development') or
      (GATEWAY_HOST and not 'localhost' in GATEWAY_HOST)
  )
  client = None
  
  def load_client(apikey=None):
      global client
      if client is None:
          # docker containers networking within docker-compose or Fargate task
          host = 'api.mpcontribs.org'
          if apikey is None:
              host = 'api:5000' if DEBUG else 'localhost:5000'
          protocol = 'https' if apikey else 'http'
          spec_url = f'{protocol}://{host}/apispec.json'
          if apikey:
              http_client = RequestsClient()
              http_client.set_api_key(
                  host, apikey, param_in='header', param_name='x-api-key'
              )
          else:
              http_client = FidoClient()
          loader = Loader(http_client)
          spec_dict = loader.load_spec(spec_url)
          spec_dict['host'] = host
          spec_dict['schemes'] = [protocol]
          client = SwaggerClient.from_spec(
              spec_dict, spec_url, http_client,
              {'validate_responses': False, 'use_models': False}
          )
      return client
  
subject: use sync if api key