mypy fixes.

lnbits/wallets/base.py

@@ -32,7 +32,7 @@ class PaymentStatus(NamedTuple):
 
 class Wallet(ABC):
     @abstractmethod
-    def status() -> StatusResponse:
+    def status(self) -> StatusResponse:
         pass
 
     @abstractmethod

lnbits/wallets/lnpay.py

@@ -23,7 +23,7 @@ class LNPayWallet(Wallet):
         try:
             r = httpx.get(url, headers=self.auth)
         except (httpx.ConnectError, httpx.RequestError):
-            return StatusResponse(f"Unable to connect to '{url}'")
+            return StatusResponse(f"Unable to connect to '{url}'", 0)
 
         if r.is_error:
             return StatusResponse(r.text[:250], 0)

lnbits/wallets/opennode.py

@@ -24,7 +24,7 @@ class OpenNodeWallet(Wallet):
         try:
             r = httpx.get(f"{self.endpoint}/v1/account/balance", headers=self.auth)
         except (httpx.ConnectError, httpx.RequestError):
-            return StatusResponse(f"Unable to connect to '{self.endpoint}'")
+            return StatusResponse(f"Unable to connect to '{self.endpoint}'", 0)
 
         data = r.json()["message"]
         if r.is_error: