Fix typo: double "be" (#373)
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@ -278,7 +278,7 @@ Converters are run *before* validators, so you can use validators to check the f
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>>> def validate_x(instance, attribute, value):
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... if value < 0:
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... raise ValueError("x must be be at least 0.")
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... raise ValueError("x must be at least 0.")
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>>> @attr.s
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... class C(object):
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... x = attr.ib(converter=int, validator=validate_x)
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@ -288,7 +288,7 @@ Converters are run *before* validators, so you can use validators to check the f
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>>> C("-1")
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Traceback (most recent call last):
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...
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ValueError: x must be be at least 0.
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ValueError: x must be at least 0.
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Arguably, you can abuse converters as one-argument validators:
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