[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

robyn/processpool.py

@@ -78,7 +78,7 @@ def init_processpool(
     response_headers: Headers,
 ) -> List[Process]:
     process_pool = []
-    ctx = mp.get_context('spawn')
+    ctx = mp.get_context("spawn")
 
     if sys.platform.startswith("win32"):
         spawn_process(