Remove unnecessary async code, part 2

Replicates graphql/graphql-relay-js@bae5ead

Author: Cito

src/graphql_relay/node/plural.py

@@ -1,4 +1,4 @@
-from typing import Any, Callable
+from typing import Any, Callable, cast
 
 from graphql.type import (
     GraphQLArgument,
@@ -20,12 +20,7 @@ def plural_identifying_root_field(
     description: str = None,
 ) -> GraphQLField:
     if is_non_null_type(input_type):
-        input_type = input_type.of_type
-    input_args = {
-        arg_name: GraphQLArgument(
-            GraphQLNonNull(GraphQLList(GraphQLNonNull(input_type)))
-        )
-    }
+        input_type = cast(GraphQLNonNull, input_type).of_type
 
     def resolve(_obj, info, **args):
         inputs = args[arg_name]
@@ -34,6 +29,10 @@ def resolve(_obj, info, **args):
     return GraphQLField(
         GraphQLList(output_type),
         description=description,
-        args=input_args,
+        args={
+            arg_name: GraphQLArgument(
+                GraphQLNonNull(GraphQLList(GraphQLNonNull(input_type)))
+            )
+        },
         resolve=resolve,
     )

tests/node/test_plural.py

@@ -1,8 +1,6 @@
 from typing import NamedTuple
 
-from pytest import mark  # type: ignore
-
-from graphql import graphql
+from graphql import graphql_sync
 from graphql.type import (
     GraphQLField,
     GraphQLObjectType,
@@ -55,8 +53,7 @@ class Context:
 
 
 def describe_plural_identifying_root_field():
-    @mark.asyncio
-    async def allows_fetching():
+    def allows_fetching():
         query = """
         {
           usernames(usernames:["dschafer", "leebyron", "schrockn"]) {
@@ -65,7 +62,7 @@ async def allows_fetching():
           }
         }
         """
-        assert await graphql(schema, query, context_value=Context()) == (
+        assert graphql_sync(schema, query, context_value=Context()) == (
             {
                 "usernames": [
                     {
@@ -85,8 +82,7 @@ async def allows_fetching():
             None,
         )
 
-    @mark.asyncio
-    async def correctly_introspects():
+    def correctly_introspects():
         query = """
         {
           __schema {
@@ -121,7 +117,7 @@ async def correctly_introspects():
           }
         }
         """
-        assert await graphql(schema, query) == (
+        assert graphql_sync(schema, query) == (
             {
                 "__schema": {
                     "queryType": {