loadSrcNamespaces: bool (default: true)
failFast: bool (default: true, production: false)
namespaces: string[] (default: [])
defaultSerializationMediaType: string (default: application/x-php-serialized) [application/json, application/xml]
defaultErrorChannel: string (default: null)
defaultMemoryLimit: string (default: 1024)
defaultConnectionExceptionRetry:
initialDelay: int (default: 100, production: 1000)
maxAttempts: int (default: 3, production: 5)
multiplier: int (default: 3)
serviceName: string (default: null)