fix: commit checks

Author: will-larkin

pandas/io/json/_json.py

@@ -981,13 +981,13 @@ def _read_ujson(self) -> DataFrame | Series:
             elif self.nrows:
                 lines = list(islice(self.data, self.nrows))
                 lines_json = self._combine_lines(lines)
-                obj = self._get_object_parser(lines_json)
+                obj: DataFrame | Series = self._get_object_parser(lines_json)
             else:
                 data = ensure_str(self.data)
                 data_lines = data.split("\n")
-                obj = self._get_object_parser(self._combine_lines(data_lines))
+                obj: DataFrame | Series = self._get_object_parser(self._combine_lines(data_lines))
         else:
-            obj = self._get_object_parser(self.data)
+            obj: DataFrame | Series = self._get_object_parser(self.data)
         if self.dtype_backend is not lib.no_default:
             return obj.convert_dtypes(
                 infer_objects=False, dtype_backend=self.dtype_backend