sdk/appcenter-crashes/src/main/java/com/microsoft/appcenter/crashes/Crashes.java [233:260]:
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        return sInstance;
    }

    @VisibleForTesting
    static synchronized void unsetInstance() {
        sInstance = null;
    }

    /**
     * Check whether Crashes service is enabled or not.
     *
     * @return future with result being <code>true</code> if enabled, <code>false</code> otherwise.
     * @see AppCenterFuture
     */
    public static AppCenterFuture<Boolean> isEnabled() {
        return getInstance().isInstanceEnabledAsync();
    }

    /**
     * Enable or disable Crashes service.
     * <p>
     * The state is persisted in the device's storage across application launches.
     *
     * @param enabled <code>true</code> to enable, <code>false</code> to disable.
     * @return future with null result to monitor when the operation completes.
     */
    public static AppCenterFuture<Void> setEnabled(boolean enabled) {
        return getInstance().setInstanceEnabledAsync(enabled);
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sdk/appcenter-distribute/src/main/java/com/microsoft/appcenter/distribute/Distribute.java [335:362]:
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        return sInstance;
    }

    @VisibleForTesting
    static synchronized void unsetInstance() {
        sInstance = null;
    }

    /**
     * Check whether Distribute service is enabled or not.
     *
     * @return future with result being <code>true</code> if enabled, <code>false</code> otherwise.
     * @see AppCenterFuture
     */
    public static AppCenterFuture<Boolean> isEnabled() {
        return getInstance().isInstanceEnabledAsync();
    }

    /**
     * Enable or disable Distribute service.
     * <p>
     * The state is persisted in the device's storage across application launches.
     *
     * @param enabled <code>true</code> to enable, <code>false</code> to disable.
     * @return future with null result to monitor when the operation completes.
     */
    public static AppCenterFuture<Void> setEnabled(boolean enabled) {
        return getInstance().setInstanceEnabledAsync(enabled);
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