class Geocoder::Lookup::Base

def check_api_key_configuration!(query)
  key_parts = query.lookup.required_api_key_parts
  if key_parts.size > Array(configuration.api_key).size
    parts_string = key_parts.size == 1 ? key_parts.first : key_parts
    raise Geocoder::ConfigurationError,
      "The #{query.lookup.name} API requires a key to be configured: " +
      parts_string.inspect
  end
end