code: def negociate_content(default='json-ld'):
      '''Perform a content negociation on the format given the Accept header'''
      mimetype = request.accept_mimetypes.best_match(ACCEPTED_MIME_TYPES.keys())
      return ACCEPTED_MIME_TYPES.get(mimetype, defaultf negociate_content(default='json-ld'):
      '''Perform a content negociation on the format given the Accept header'''
      mimetype = request.accept_mimetypes.best_match(ACCEPTED_MIME_TYPES.keys())
      return ACCEPTED_MIME_TYPES.get(mimetype, default)
docs: Perform a content negociation on the format given the Accept header