feat: P0/P1/P2全部功能 — 四层泳道/视角切换/KPI看板/预警/差异反打/预算/知识面板/回顾会/情景预测/Excel导入/角色权限

backend/venv/lib/python3.12/site-packages/redis/credentials.py

@@ -0,0 +1,26 @@
+from typing import Optional, Tuple, Union
+
+
+class CredentialProvider:
+    """
+    Credentials Provider.
+    """
+
+    def get_credentials(self) -> Union[Tuple[str], Tuple[str, str]]:
+        raise NotImplementedError("get_credentials must be implemented")
+
+
+class UsernamePasswordCredentialProvider(CredentialProvider):
+    """
+    Simple implementation of CredentialProvider that just wraps static
+    username and password.
+    """
+
+    def __init__(self, username: Optional[str] = None, password: Optional[str] = None):
+        self.username = username or ""
+        self.password = password or ""
+
+    def get_credentials(self):
+        if self.username:
+            return self.username, self.password
+        return (self.password,)