fix signature of from_json

Author: samuelcolvin

python/pydantic_core/_pydantic_core.pyi

@@ -384,7 +384,12 @@ def to_json(
        JSON bytes.
     """
 
-def from_json(data: str | bytes | bytearray, *, allow_inf_nan: bool = True, cache_strings: bool = True) -> Any:
+def from_json(
+    data: str | bytes | bytearray,
+    *,
+    allow_inf_nan: bool = True,
+    cache_strings: bool | Literal['all', 'keys', 'none'] = True,
+) -> Any:
     """
     Deserialize JSON data to a Python object.
 
@@ -394,7 +399,8 @@ def from_json(data: str | bytes | bytearray, *, allow_inf_nan: bool = True, cach
         data: The JSON data to deserialize.
         allow_inf_nan: Whether to allow `Infinity`, `-Infinity` and `NaN` values as `json.loads()` does by default.
         cache_strings: Whether to cache strings to avoid constructing new Python objects,
-            this should have a significant impact on performance while increasing memory usage slightly.
+            this should have a significant impact on performance while increasing memory usage slightly,
+            `all/True` means cache all strings, `keys` means cache only dict keys, `none/False` means no caching.
 
     Raises:
         ValueError: If deserialization fails.