fix: check cli style

Author: huiii99

src/azure-cli/azure/cli/command_modules/vm/_vm_utils.py

@@ -779,4 +779,4 @@ def safe_get(d: dict, path: str, default=None):
             cur = cur[key]
         else:
             return default
-    return cur
+    return cur

src/azure-cli/azure/cli/command_modules/vm/custom.py

@@ -2255,6 +2255,7 @@ def attach_managed_data_disk(cmd, resource_group_name, vm_name,
         vm_dict = vm if isinstance(vm, dict) else getattr(vm, 'result', vm)
         data_disks = vm_dict.get('storageProfile', {}).get('dataDisks', []) or []
         used_luns = {d.get('lun') for d in data_disks if isinstance(d, dict) and d.get('lun') is not None}
+
         def _next_lun(start=0):
             i = start
             while i in used_luns:
@@ -2288,6 +2289,7 @@ def _next_lun(start=0):
     # new / copy / restore
     from azure.mgmt.core.tools import parse_resource_id
     from .operations.vm import VMUpdate as _VMUpdate
+
     class VMUpdate(_VMUpdate):
         def pre_instance_update(self, instance):
             storage_profile = instance.properties.storage_profile
@@ -2298,6 +2300,7 @@ def pre_instance_update(self, instance):
                 for d in data_disks_list:
                     if isinstance(d, dict) and 'lun' in d and d['lun'] is not None:
                         used_luns.add(d['lun'])
+
             def _next_lun(start=0):
                 i = start
                 while i in used_luns:
@@ -2389,6 +2392,7 @@ def _next_lun(start=0):
     }
     return VMUpdate(cli_ctx=cmd.cli_ctx)(command_args=args)
 
+
 def detach_unmanaged_data_disk(cmd, resource_group_name, vm_name, disk_name):
     # here we handle unmanaged disk
     vm = get_vm_to_update(cmd, resource_group_name, vm_name)