encode(_:forKey:)
Declaration
mutating func encode<T, C>(_ wrapper: CodableConfiguration<T?, C>, forKey key: KeyedEncodingContainer<K>.Key) throws where T : DecodableWithConfiguration, T : EncodableWithConfiguration, C : DecodingConfigurationProviding, C : EncodingConfigurationProviding, T.DecodingConfiguration == C.DecodingConfiguration, T.EncodingConfiguration == C.EncodingConfiguration