ENH: 'open' and 'close' functions for threaded and async classes

Author: dmgav

src/save_and_restore_api/_api_async.py

@@ -1,4 +1,12 @@
+import httpx
+
 from ._api_base import _SaveRestoreAPI_Base
 
 
-class _SaveRestoreAPI_Async(_SaveRestoreAPI_Base): ...
+class _SaveRestoreAPI_Async(_SaveRestoreAPI_Base):
+    def open(self):
+        self._client = httpx.AsyncClient(base_url=self._base_url, timeout=self._timeout)
+
+    async def close(self):
+        await self._client.aclose()
+        self._client = None

src/save_and_restore_api/_api_base.py

@@ -59,12 +59,9 @@ def gen_auth(username, password):
     def set_auth(self, *, username, password):
         self._auth = self.gen_auth(username=username, password=password)
 
-    def open(self):
-        self._client = httpx.Client(base_url=self._base_url, timeout=self._timeout)
+    def open(self): ...
 
-    def close(self):
-        self._client.close()
-        self._client = None
+    def close(self): ...
 
     def set_username_password(self, username=None, password=None):
         if not isinstance(username, str):

src/save_and_restore_api/_api_threads.py

@@ -1,4 +1,12 @@
+import httpx
+
 from ._api_base import _SaveRestoreAPI_Base
 
 
-class _SaveRestoreAPI_Threads(_SaveRestoreAPI_Base): ...
+class _SaveRestoreAPI_Threads(_SaveRestoreAPI_Base):
+    def open(self):
+        self._client = httpx.Client(base_url=self._base_url, timeout=self._timeout)
+
+    def close(self):
+        self._client.close()
+        self._client = None