# 通用工具

此页面列出了在`utils.py`文件中找到的所有Transformers通用实用函数。

其中大多数仅在您研究库中的通用代码时才有用。

## Enums和namedtuples(命名元组)[[transformers.utils.ExplicitEnum]]

Enum with more explicit error message for missing values.

Possible values for the `padding` argument in [PreTrainedTokenizerBase.__call__()](/docs/transformers/main/zh/internal/tokenization_utils#transformers.PreTrainedTokenizerBase.__call__). Useful for tab-completion in an
IDE.

Possible values for the `return_tensors` argument in [PreTrainedTokenizerBase.__call__()](/docs/transformers/main/zh/internal/tokenization_utils#transformers.PreTrainedTokenizerBase.__call__). Useful for
tab-completion in an IDE.

## 特殊的装饰函数[[transformers.add_start_docstrings]]

## 其他实用程序[[transformers.utils._LazyModule]]

Module class that surfaces all objects but only performs associated imports when the objects are requested.