ihjddlmZmZmZddlmZddlmZmZee e fZ dee fdZ GddeZ y) )AnyListTuple) Mergeable)ValidatedStringMixinValidationErrorreturncgS)aMypy gets upset about stuff like: from dataclasses import dataclass, field from typing import Optional, List @dataclass class Foo: x: Optional[List[str]] = field(default_factory=list) Because `list` could be any kind of list, I guess r S/var/www/html/strategist-ai/venv/lib/python3.12/site-packages/dbt/contracts/util.pylist_strr s  Ir c.eZdZdZdZededefdZy) IdentifierzOur definition of a valid Identifier is the same as what's valid for an unquoted database table name. That is: 1. It can contain a-z, A-Z, 0-9, and _ 1. It cannot start with a number z ^[^\d\W]\w*$valuer cht|tsy |j|y#t$rYywxYw)NFT) isinstancestrvalidater)clsrs r is_validzIdentifier.is_valid$s9%%  LL   s % 11N) __name__ __module__ __qualname____doc__ValidationRegex classmethodrboolrr r r rrs.&O S T  r rN) typingrrrdbt_common.contracts.utilrdbt_common.dataclass_schemarrr SourceKeyrrr r r r#s=##0M #s(O  $s)  %r