commons-rng-sampling/src/main/java/org/apache/commons/rng/sampling/distribution/DiscreteUniformSampler.java [341:373]:
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    @Override
    public int sample() {
        return delegate.sample();
    }

    /** {@inheritDoc} */
    @Override
    public String toString() {
        return delegate.toString();
    }

    /**
     * {@inheritDoc}
     *
     * @since 1.3
     */
    @Override
    public SharedStateDiscreteSampler withUniformRandomProvider(UniformRandomProvider rng) {
        // Direct return of the optimised sampler
        return delegate.withUniformRandomProvider(rng);
    }

    /**
     * Creates a new discrete uniform distribution sampler.
     *
     * @param rng Generator of uniformly distributed random numbers.
     * @param lower Lower bound (inclusive) of the distribution.
     * @param upper Upper bound (inclusive) of the distribution.
     * @return the sampler
     * @throws IllegalArgumentException if {@code lower > upper}.
     * @since 1.3
     */
    public static SharedStateDiscreteSampler of(UniformRandomProvider rng,
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commons-rng-sampling/src/main/java/org/apache/commons/rng/sampling/distribution/RejectionInversionZipfSampler.java [295:331]:
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    @Override
    public int sample() {
        return delegate.sample();
    }

    /** {@inheritDoc} */
    @Override
    public String toString() {
        return delegate.toString();
    }

    /**
     * {@inheritDoc}
     *
     * @since 1.3
     */
    @Override
    public SharedStateDiscreteSampler withUniformRandomProvider(UniformRandomProvider rng) {
        return delegate.withUniformRandomProvider(rng);
    }

    /**
     * Creates a new Zipf distribution sampler.
     *
     * <p>Note when {@code exponent = 0} the Zipf distribution reduces to a
     * discrete uniform distribution over the interval {@code [1, n]} with {@code n}
     * the number of elements.
     *
     * @param rng Generator of uniformly distributed random numbers.
     * @param numberOfElements Number of elements.
     * @param exponent Exponent.
     * @return the sampler
     * @throws IllegalArgumentException if {@code numberOfElements <= 0} or
     * {@code exponent < 0}.
     * @since 1.3
     */
    public static SharedStateDiscreteSampler of(UniformRandomProvider rng,
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