Add support test maintenance

Signed-off-by: Dmitriy Zayakin <d.zayakin@yadro.com>

src/frostfs_testlib/storage/dataclasses/storage_object_info.py

@@ -1,5 +1,4 @@
 from dataclasses import dataclass
-from enum import Enum
 from typing import Optional
 
 from frostfs_testlib.testing.readable import HumanReadableEnum
@@ -28,10 +27,16 @@ class StorageObjectInfo(ObjectRef):
     locks: Optional[list[LockObjectInfo]] = None
 
 
+class ModeNode(HumanReadableEnum):
+    MAINTENANCE: str = "maintenance"
+    ONLINE: str = "online"
+    OFFLINE: str = "offline"
+
+
 @dataclass
 class NodeNetmapInfo:
     node_id: str = None
-    node_status: str = None
+    node_status: ModeNode = None
     node_data_ips: list[str] = None
     cluster_name: str = None
     continent: str = None
@@ -53,3 +58,19 @@ class Interfaces(HumanReadableEnum):
     MGMT: str = "mgmt"
     INTERNAL_0: str = "internal0"
     INTERNAL_1: str = "internal1"
+
+
+@dataclass
+class NodeNetInfo:
+    epoch: str = None
+    network_magic: str = None
+    time_per_block: str = None
+    container_fee: str = None
+    epoch_duration: str = None
+    inner_ring_candidate_fee: str = None
+    maximum_object_size: str = None
+    withdrawal_fee: str = None
+    homomorphic_hashing_disabled: str = None
+    maintenance_mode_allowed: str = None
+    eigen_trust_alpha: str = None
+    eigen_trust_iterations: str = None