Add morph remove node command

Signed-off-by: anikeev-yadro <a.anikeev@yadro.com>

src/frostfs_testlib/cli/frostfs_adm/morph.py

@@ -127,12 +127,12 @@ class FrostfsAdmMorph(CliCommand):
         )
 
     def force_new_epoch(
-        self, rpc_endpoint: Optional[str] = None, alphabet: Optional[str] = None
+        self, rpc_endpoint: Optional[str] = None, alphabet_wallets: Optional[str] = None
     ) -> CommandResult:
         """Create new FrostFS epoch event in the side chain.
 
         Args:
-            alphabet: Path to alphabet wallets dir.
+            alphabet_wallets: Path to alphabet wallets dir.
             rpc_endpoint: N3 RPC node endpoint.
 
         Returns:
@@ -354,3 +354,29 @@ class FrostfsAdmMorph(CliCommand):
                 if param not in ["self"]
             },
         )
+
+    def remove_nodes(
+        self, node_netmap_keys: list[str], rpc_endpoint: Optional[str] = None, alphabet_wallets: Optional[str] = None
+    ) -> CommandResult:
+        """    Move node to the Offline state in the candidates list 
+        and tick an epoch to update the netmap using frostfs-adm
+
+        Args:
+            node_netmap_keys: list of nodes netmap keys.
+            alphabet_wallets: Path to alphabet wallets dir.
+            rpc_endpoint: N3 RPC node endpoint.
+
+        Returns:
+            Command's result.
+        """
+        if not len(node_netmap_keys):
+            raise AttributeError("Got empty node_netmap_keys list")
+        
+        return self._execute(
+            f"morph remove-nodes {' '.join(node_netmap_keys)}",
+            **{
+                param: param_value
+                for param, param_value in locals().items()
+                if param not in ["self", "node_netmap_keys"]
+            },
+        )