Rewrite, edit and organize examples/rest demos.

examples/rest/authenticated/toggle_keep_funding.py

@@ -0,0 +1,24 @@
+# python -c "import examples.rest.authenticated.toggle_keep_funding"
+
+import os
+
+from bfxapi import Client, REST_HOST
+
+from bfxapi.rest.types import List, FundingLoan, Notification
+
+bfx = Client(
+    REST_HOST=REST_HOST,
+    API_KEY=os.getenv("BFX_API_KEY"),
+    API_SECRET=os.getenv("BFX_API_SECRET")
+)
+
+loans: List[FundingLoan] = bfx.rest.auth.get_funding_loans(symbol="fUSD")
+
+# Set every loan's keep funding status to <off> (1: <on>, 2: <off>)
+notification: Notification[None] = bfx.rest.auth.toggle_keep_funding(
+    funding_type="loan",
+    ids=[ loan.id for loan in loans ],
+    changes={ loan.id: 2 for loan in loans }
+)
+
+print("Toggle keep funding notification:", notification)