Update InsufficientFundsError to have required_balance and `account…

…_balance` fields

src/aleph/sdk/client/authenticated_http.py

@@ -583,7 +583,7 @@ async def create_instance(
             account_balance = float(error["account_balance"])
             required_balance = float(error["required_balance"])
             raise InsufficientFundsError(
-                f"Account balance {account_balance} is not enough to create instance, required {required_balance}"
+                required_funds=required_balance, available_funds=account_balance
             )
         else:
             raise ValueError(f"Unknown error code {error_code}: {rejected_message}")

src/aleph/sdk/exceptions.py

@@ -69,4 +69,12 @@ class ForgottenMessageError(QueryError):
 class InsufficientFundsError(Exception):
     """Raised when the account does not have enough funds to perform an action"""
 
-    pass
+    required_funds: float
+    available_funds: float
+
+    def __init__(self, required_funds: float, available_funds: float):
+        self.required_funds = required_funds
+        self.available_funds = available_funds
+        super().__init__(
+            f"Insufficient funds: required {required_funds}, available {available_funds}"
+        )