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Easy Redis Java client and Real-Time Data Platform. Valkey compatible. Sync/Async/RxJava3/Reactive API. Client side caching. Over 50 Redis based Java objects and services: JCache API, Apache Tomcat, Hibernate, Spring, Set, Multimap, SortedSet, Map, List, Queue, Deque, Semaphore, Lock, AtomicLong, Map Reduce, Bloom filter, Scheduler, RPC

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package org.slf4j.spi;

import java.util.function.Supplier;

import org.slf4j.Marker;
import org.slf4j.event.Level;

/**
 * A no-operation implementation of {@link LoggingEventBuilder}.
 *
 * As the name indicates, the method in this class do nothing, except when a return value is expected
 * in which case a singleton, i.e. the unique instance of this class is returned.
 * Returns the singleton instance of this class.
     * Used by {@link org.slf4j.Logger#makeLoggingEventBuilder(Level) makeLoggingEventBuilder(Level)}.
     *
     * @return the singleton instance of this class
     */
    public static LoggingEventBuilder singleton() {
        return SINGLETON;
    }

    @Override
    public LoggingEventBuilder addMarker(Marker marker) {
        return singleton();
    }

    @Override
    public LoggingEventBuilder addArgument(Object p) {
        return singleton();
    }

    @Override
    public LoggingEventBuilder addArgument(Supplier objectSupplier) {
        return singleton();
    }

    @Override
    public LoggingEventBuilder addKeyValue(String key, Object value) {
        return singleton();
    }

    @Override
    public LoggingEventBuilder addKeyValue(String key, Supplier