Building RESTful Python Web Services

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1. The concurrent.futures.ThreadPoolExecutor class provides us:
   1. A high-level interface for synchronously executing callables.
   2. A high-level interface for asynchronously executing callables.
   3. A high-level interface for composing HTTP requests.

2. The @tornado.concurrent.run_on_executor decorator allows us to:
   1. Run an asynchronous method synchronously on an executor.
   2. Run an asynchronous method on an executor without generating a Future.
   3. Run a synchronous method asynchronously on an executor.

3. The recommended way to write asynchronous code in Tornado is to use:
   1. Coroutines.
   2. Chained callbacks.
   3. Subroutines.

4. The tornado.Testing.AsyncHTTPTestCase class represents:
   1. A test case that starts up a Flask HTTP Server.
   2. A test case that starts up a Tornado HTTP ...