chore: use from __future__ import annotations (#30254)

Co-authored-by: Dev <dev@Devs-MacBook-Pro-4.local>
Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>
Co-authored-by: Asuka Minato <i@asukaminato.eu.org>
Co-authored-by: crazywoola <100913391+crazywoola@users.noreply.github.com>

api/core/datasource/__base/datasource_plugin.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from abc import ABC, abstractmethod
 
 from configs import dify_config
@@ -30,7 +32,7 @@ class DatasourcePlugin(ABC):
         """
         return DatasourceProviderType.LOCAL_FILE
 
-    def fork_datasource_runtime(self, runtime: DatasourceRuntime) -> "DatasourcePlugin":
+    def fork_datasource_runtime(self, runtime: DatasourceRuntime) -> DatasourcePlugin:
         return self.__class__(
             entity=self.entity.model_copy(),
             runtime=runtime,

api/core/datasource/entities/datasource_entities.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import enum
 from enum import StrEnum
 from typing import Any
@@ -31,7 +33,7 @@ class DatasourceProviderType(enum.StrEnum):
     ONLINE_DRIVE = "online_drive"
 
     @classmethod
-    def value_of(cls, value: str) -> "DatasourceProviderType":
+    def value_of(cls, value: str) -> DatasourceProviderType:
         """
         Get value of given mode.
 
@@ -81,7 +83,7 @@ class DatasourceParameter(PluginParameter):
         typ: DatasourceParameterType,
         required: bool,
         options: list[str] | None = None,
-    ) -> "DatasourceParameter":
+    ) -> DatasourceParameter:
         """
         get a simple datasource parameter
 
@@ -187,14 +189,14 @@ class DatasourceInvokeMeta(BaseModel):
     tool_config: dict | None = None
 
     @classmethod
-    def empty(cls) -> "DatasourceInvokeMeta":
+    def empty(cls) -> DatasourceInvokeMeta:
         """
         Get an empty instance of DatasourceInvokeMeta
         """
         return cls(time_cost=0.0, error=None, tool_config={})
 
     @classmethod
-    def error_instance(cls, error: str) -> "DatasourceInvokeMeta":
+    def error_instance(cls, error: str) -> DatasourceInvokeMeta:
         """
         Get an instance of DatasourceInvokeMeta with error
         """