espnet.nets.pytorch_backend.transducer.utils.is_prefix

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espnet.nets.pytorch_backend.transducer.utils.is_prefix(x: List[int], pref: List[int]) → bool

Check if pref is a prefix of x.

• Parameters:
  • x – Label ID sequence.
  • pref – Prefix label ID sequence.
• Returns: Whether pref is a prefix of x.