Add classes for Python definitions

tests/utils/ast_node.py

@@ -0,0 +1,36 @@
+# Copyright 2026 jCloud Services GbR
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from typing import Union
+import ast
+
+__all__ = [
+    'ast_node'
+]
+
+def ast_node(statement: str) -> Union[ast.stmt, None]:
+    '''
+    Returns an AST node from the statement.
+
+    :param statement: The statement.
+    :type statement: str
+
+    :return: The node.
+    :rtype: Union[ast.stmt, None]
+    '''
+
+    body = ast.parse(statement).body
+    if not body:
+        return None
+    return body[0]