fast init

src/template_project/application/common/containers.py

@@ -0,0 +1,42 @@
+from collections.abc import Container, Hashable, Sized
+from typing import Any, Final, override
+
+_SECRET_VALUE: Final = "********"  # noqa: S105
+
+
+class SecretString(Container[bool], Hashable, Sized):
+    __slots__ = ("_value",)
+
+    def __init__(self, value: str) -> None:
+        self._value = value
+
+    @override
+    def __hash__(self) -> int:
+        return hash(self._value)
+
+    @override
+    def __len__(self) -> int:
+        return len(self._value)
+
+    @override
+    def __eq__(self, value: object) -> bool:
+        if isinstance(value, str):
+            return self._value == value
+        return NotImplemented
+
+    @override
+    def __contains__(self, value: object) -> Any:
+        if isinstance(value, str):
+            return value in self._value
+        return NotImplemented
+
+    @override
+    def __str__(self) -> str:
+        return _SECRET_VALUE
+
+    @override
+    def __repr__(self) -> str:
+        return f"<{self.__class__.__name__}(value={_SECRET_VALUE!r})>"
+
+    def get_value(self) -> str:
+        return self._value