字面值是某些内建类型常值的表示法。

Literals are notations for constant values of some built-in types.

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取出一个可调用内建类型的结果类型。

Extracts the result type of a callable, builtin type.

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性能是这个版本的主要关注点，启动速度更快了，内建类型也得到了优化。

Performance has been a major focus to this release, getting startup time quicker and optimizing built-in types.

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