ethereum.utils

Utility functions used in this specification.

has_field

Returns True if class_ has a field with the given name.

def has_field(​class_: Any, ​​name: str​) -> bool:
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    """
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    Returns `True` if `class_` has a field with the given `name`.
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    """
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    try:
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        all_fields = fields(class_)
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    except TypeError:
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        return False
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    return any(x.name == name for x in all_fields)