diff --git a/bfxapi/rest/_RestAuthenticatedEndpoints.py b/bfxapi/rest/_RestAuthenticatedEndpoints.py
index af01a29..7dc8136 100644
--- a/bfxapi/rest/_RestAuthenticatedEndpoints.py
+++ b/bfxapi/rest/_RestAuthenticatedEndpoints.py
@@ -133,8 +133,10 @@ class _RestAuthenticatedEndpoints(_Requests):
     def cancel_funding_offer(self, id: int) -> Notification[FundingOffer]:
         return serializers._Notification[FundingOffer](serializer=serializers.FundingOffer).parse(*self._POST("auth/w/funding/offer/cancel", data={ "id": id }))
 
-    def cancel_all_funding_offers(self, currency: str) -> Notification:
-        return serializers._Notification().parse(*self._POST("auth/w/funding/offer/cancel/all", data={ "currency": currency }))
+    def cancel_all_funding_offers(self, currency: str) -> Notification[Literal[None]]:
+        return serializers._Notification[Literal[None]](serializer=None).parse(
+            *self._POST("auth/w/funding/offer/cancel/all", data={ "currency": currency })
+        )
 
     def get_funding_offers_history(self, symbol: Optional[str] = None, start: Optional[str] = None, end: Optional[str] = None, limit: Optional[int] = None) -> List[FundingOffer]:
         if symbol == None:
@@ -187,7 +189,7 @@ class _RestAuthenticatedEndpoints(_Requests):
         return [ serializers.FundingCredit.parse(*sub_data) for sub_data in self._POST(endpoint, data=data) ]
 
     def submit_funding_close(self, id: int) -> Notification[Literal[None]]:
-        return serializers._Notification[Literal[None]]().parse(
+        return serializers._Notification[Literal[None]](serializer=None).parse(
             *self._POST("auth/w/funding/close", data={ "id": id })
         )
 
@@ -198,6 +200,13 @@ class _RestAuthenticatedEndpoints(_Requests):
             "rate": rate, "period": period
         }))
 
+    def submit_funding_toggle_keep(self, type: Literal["credit", "loan"], ids: Optional[List[int]] = None, changes: Optional[Dict[int, bool]] = None) -> Notification[Literal[None]]:
+        return serializers._Notification[Literal[None]](serializer=None).parse(*self._POST("auth/w/funding/keep", data={
+            "type": type,
+            "id": ids,
+            "changes": changes
+        }))
+
     def submit_wallet_transfer(self, from_wallet: str, to_wallet: str, currency: str, currency_to: str, amount: Union[Decimal, float, str]) -> Notification[Transfer]:
         data = {
             "from": from_wallet, "to": to_wallet,
diff --git a/examples/rest/keep_taken_funding.py b/examples/rest/keep_taken_funding.py
new file mode 100644
index 0000000..9693f95
--- /dev/null
+++ b/examples/rest/keep_taken_funding.py
@@ -0,0 +1,26 @@
+# python -c "import examples.rest.keep_taken_funding"
+
+import os
+
+from bfxapi.client import Client, Constants
+
+bfx = Client(
+    REST_HOST=Constants.REST_HOST,
+    API_KEY=os.getenv("BFX_API_KEY"),
+    API_SECRET=os.getenv("BFX_API_SECRET")
+)
+
+loans = bfx.rest.auth.get_funding_loans(symbol="fUSD")
+
+for loan in loans:
+    print(f"Loan {loan}")
+
+    notification = bfx.rest.auth.submit_funding_toggle_keep(
+        funding_type="loan",
+        ids=[loan.id],
+        changes={
+            loan.id: 2  # (1 if true, 2 if false)
+        }
+    )
+
+    print("Funding keep notification:", notification)
\ No newline at end of file