def validate(cls, v: Any) -> Pattern:
if isinstance(v, Pattern):
return v
elif isinstance(v, bson.regex.Regex):
return re.compile(v.pattern, flags=v.flags)
a = pattern_validator(v)
return a
def validate(cls, v: Any) -> bson.regex.Regex:
if isinstance(v, bson.regex.Regex):
return v
a = pattern_validator(v)
return bson.regex.Regex(a.pattern)