feat(withdraw): type casting

lnbits/extensions/withdraw/models.py

@@ -1,5 +1,6 @@
 from flask import url_for
 from lnurl import Lnurl, LnurlWithdrawResponse, encode as lnurl_encode
+from sqlite3 import Row
 from typing import NamedTuple
 
 from lnbits.settings import FORCE_HTTPS
@@ -19,6 +20,12 @@ class WithdrawLink(NamedTuple):
     open_time: int
     used: int
 
+    @classmethod
+    def from_row(cls, row: Row) -> "WithdrawLink":
+        data = dict(row)
+        data["is_unique"] = bool(data["is_unique"])
+        return cls(**data)
+
     @property
     def is_spent(self) -> bool:
         return self.used >= self.uses