fix: resolve ci issues

operate/services/manage.py

@@ -1194,7 +1194,7 @@ def fund_service_erc20(  # pylint: disable=too-many-arguments,too-many-locals
         self,
         hash: str,
         token: str,
-        token_symbol: Optional[str] = None,
+        token_symbol: t.Optional[str] = None,
         token_decimal: int = 18,
         rpc: t.Optional[str] = None,
         agent_topup: t.Optional[float] = None,
@@ -1400,9 +1400,8 @@ def _wei_to_unit(self, wei: int) -> float:  # pylint: disable=R0201
         value = wei / 1e18
         return f"{value:.18f}"
 
-    def _convert_to_token_units(
-        self, amount: int, token_decimal: int = 18
-    ) -> str:  # pylint: disable=R0201
+    # pylint: disable=R0201
+    def _convert_to_token_units(self, amount: int, token_decimal: int = 18) -> str:
         """Convert smallest unit to token's base unit."""
         value = amount / 10**token_decimal
         return f"{value:.{token_decimal}f}"