refactor: Allow unsetting count arg

Author: Checho3388

src/graphql_complexity/config.py

@@ -3,5 +3,5 @@
 
 @dataclasses.dataclass(frozen=True)
 class Config:
-    count_arg_name: str = "first"
+    count_arg_name: str | None = "first"  # ToDo: Improve Unset
     count_missing_arg_value: int = 1

tests/test_lists.py

@@ -38,6 +38,20 @@ def test_complexity_reads_count_from_query_args_with_different_name():
     assert complexity == 12
 
 
+def test_complexity_with_arg_name_unset_ignores_lists():
+    query = """query {
+        droid {
+            friends(first: 10) {
+                name
+            }
+        }
+      }"""
+
+    complexity = get_complexity(query, build_schema(schema), SimpleEstimator(), Config(count_arg_name=None))
+
+    assert complexity == 3
+
+
 def test_complexity_config_allows_penalizing_missing_count_argument():
     query = """query {
         droid {