@Serializable
    @SerialName("configuringLambdaArgument")
    data class DefaultConfiguringLambdaArgument(override val objectType: DataTypeRef) : ConfigureAccessor.ConfiguringLambdaArgument

    // TODO: configure all elements by addition key?
    // TODO: Do we want to support configuring external objects?
}

                val accessor = if (property != null) ConfigureAccessorInternal.DefaultProperty(property) else ConfigureAccessorInternal.DefaultConfiguringLambdaArgument(configuredType.toDataTypeRefOrError())
                FunctionSemanticsInternal.DefaultAccessAndConfigure(accessor, returnType, blockRequirement)
            }