** Use in 'AppModule' classes to denote a service builder method.facet class Build {** If not specified, the service id is taken to be the qualified name of the returned type. ** Example:** ** @Build** static acme::MyService buildPenguin() { ... }** ** defines a service with an id of 'acme::MyService'.const Str? serviceId := null** Service scope defaults to 'perApplication' for const classes and 'perThread' for non-const ** classes.const ServiceScope? scope := null** The proxy strategy for the service. Defaults to 'ifRequired'.const ServiceProxy proxy := ServiceProxy.ifRequired}