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��Yfu�@sFdZddlmZGdd�de�ZGdd�de�ZdS)z�Parser engine for the grammar tables generated by pgen.

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            break
    root = p.rootnode                 # root of abstract syntax tree

    A Parser instance may be reused by calling setup() repeatedly.

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    See driver.py for how to get input tokens by tokenizing a file or
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