code: function createFallback( apiName, injectionName, ...passArgs ) {
     const fallback = {};
     // eslint-disable-next-line guard-for-in
     for( const method in services()[ apiName ] ) {
        fallback[ method ] = proxy( method );
     }
     return fallback;
  
     function proxy( method ) {
        return ( ...args ) => {
           const service = services()[ apiName ];
           if( !warningsShown[ apiName ] ) {
              const message =
                 `Deprecation: avoid using laxar.${apiName}: ` +
                 `Use the ${injectionName} injection.`;
              services().log.warn( message, BLACKBOX );
              warningsShown[ apiName ] = true;
           }
           return service[ method ]( ...args, ...passArgs );
        };
     }
  }
docs: ////////////////////////////////////////////////////////////////////////////////////////////////////////////