[#3] Added generate proto script create container method

Signed-off-by: Ilyas Niyazov <i.niyazov@yadro.com>

frostfs_sdk/client/utils/message_helper.py

@@ -0,0 +1,30 @@
+from typing import Any
+from google.protobuf.message import Message
+
+class MessageHelper:
+    @staticmethod
+    def get_field(message: Message, field_name: str):
+        """
+        Retrieves the value of a field from a Protobuf message.
+
+        :param message: A Protobuf Message object.
+        :param field_name: The name of the field to retrieve.
+        :return: The value of the specified field.
+        :raises ValueError: If the input parameters are invalid.
+        """
+        if not message or not field_name or not isinstance(field_name, str) or not field_name.strip():
+            raise ValueError("Some parameter is missing")
+
+        descriptor = message.DESCRIPTOR
+        field_descriptor = descriptor.fields[field_name]
+        if not field_descriptor:
+            raise ValueError(f"Field '{field_name}' not found in message descriptor")
+
+        return getattr(field_descriptor, field_name)
+
+    @staticmethod
+    def set_field(message: Message, field_name: str, value: Any) -> None:
+        if message is None or not field_name.strip() or value is None:
+            raise ValueError("Some parameter is missing")
+
+        setattr(message, message.DESCRIPTOR.fields[field_name], value)