work/workmanager/src/main/java/androidx/work/impl/WorkerWrapper.java
@VisibleForTesting
        public Builder withWorker(Worker worker) {
            mWorker = worker;
            return this;
        }
/**
         * @param worker The instance of {@link Worker} to be executed by {@link WorkerWrapper}.
         *               Useful in the context of testing.
         * @return The instance of {@link Builder} for chaining.
         */
@param worker The instance of  Worker to be executed by  WorkerWrapper.
Useful in the context of testing.
@return The instance of  Builder for chaining.
@param worker The instance of Worker to be executed by WorkerWrapper . Useful in the context of testing . @return The instance of Builder for chaining .
@VisibleForTesting
        public Builder withWorker(Worker worker) {
            mWorker = worker;
            return this;
        }
@ VisibleForTesting public Builder withWorker ( Worker worker ) { mWorker = worker ; return this ; }
@param worker The instance of {@link Worker} to be executed by {@link WorkerWrapper}.
@param worker The instance of { @link Worker } to be executed by { @link WorkerWrapper } .