Method tick

tfjs-node/src/callbacks_test.ts:29–31

(tickConfig: {placeholderForLossesAndMetrics: string})

    constructor(readonly specs: string, readonly config?: {}) {}

    tick(tickConfig: {placeholderForLossesAndMetrics: string}) {
      this.tickConfigs.push(tickConfig);
    }
  }

  let originalStderrColumns: number;