Given this interceptor code snippet, what will be logged?

Given this interceptor code snippet, what will be logged?

import { Injectable, NestInterceptor, ExecutionContext, CallHandler } from '@nestjs/common';
import { Observable, tap } from 'rxjs';

@Injectable()
export class LoggingInterceptor implements NestInterceptor {
  intercept(context: ExecutionContext, next: CallHandler): Observable {
    console.log('Before handler');
    return next.handle().pipe(
      tap(() => console.log('After handler'))
    );
  }
}