class CybridApiId::Configuration

def base_url(operation = nil)
  index = server_operation_index.fetch(operation, server_index)
  return "#{scheme}://#{[host, base_path].join('/').gsub(/\/+/, '/')}".sub(/\/+\z/, '') if index == nil
  server_url(index, server_operation_variables.fetch(operation, server_variables), operation_server_settings[operation])
end