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from typing import Any, Optional
from attrs import evolve, field
from cyclopts.utils import UNSET, frozen
@frozen(kw_only=True)
class Token:
"""Tracks how a user supplied a value to the application."""
keyword: Optional[str] = None
value: str = ""
source: str = ""
index: int = field(default=0, kw_only=True)
keys: tuple[str, ...] = field(default=(), kw_only=True)
implicit_value: Any = field(default=UNSET, kw_only=True)
@property
def address(self) -> tuple[tuple[str, ...], int]:
"""Hashable subkey destination address for this token."""
return (self.keys, self.index)
def evolve(self, **kwargs) -> "Token":
# TODO: replace return-hint with Self cp311
return evolve(self, **kwargs)
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