make all methods from all wallets async.

lnbits/wallets/base.py

@@ -1,5 +1,5 @@
 from abc import ABC, abstractmethod
-from typing import NamedTuple, Optional, AsyncGenerator
+from typing import NamedTuple, Optional, AsyncGenerator, Coroutine
 
 
 class StatusResponse(NamedTuple):
@@ -15,7 +15,9 @@ class InvoiceResponse(NamedTuple):
 
 
 class PaymentResponse(NamedTuple):
-    ok: bool
+    ok: Optional[
+        bool
+    ] = None  # when ok is None it means we don't know if this succeeded
     checking_id: Optional[str] = None  # payment_hash, rcp_id
     fee_msat: int = 0
     preimage: Optional[str] = None
@@ -32,7 +34,7 @@ class PaymentStatus(NamedTuple):
 
 class Wallet(ABC):
     @abstractmethod
-    def status(self) -> StatusResponse:
+    def status(self) -> Coroutine[None, None, StatusResponse]:
         pass
 
     @abstractmethod
@@ -41,19 +43,23 @@ class Wallet(ABC):
         amount: int,
         memo: Optional[str] = None,
         description_hash: Optional[bytes] = None,
-    ) -> InvoiceResponse:
+    ) -> Coroutine[None, None, InvoiceResponse]:
         pass
 
     @abstractmethod
-    def pay_invoice(self, bolt11: str) -> PaymentResponse:
+    def pay_invoice(self, bolt11: str) -> Coroutine[None, None, PaymentResponse]:
         pass
 
     @abstractmethod
-    def get_invoice_status(self, checking_id: str) -> PaymentStatus:
+    def get_invoice_status(
+        self, checking_id: str
+    ) -> Coroutine[None, None, PaymentStatus]:
         pass
 
     @abstractmethod
-    def get_payment_status(self, checking_id: str) -> PaymentStatus:
+    def get_payment_status(
+        self, checking_id: str
+    ) -> Coroutine[None, None, PaymentStatus]:
         pass
 
     @abstractmethod