Bug fixes for the nios member object (#56045)

* Bug fixes in api.py

* Examples updated in nios_member.py

* Update lib/ansible/module_utils/net_tools/nios/api.py

Co-Authored-By: Sumit Jaiswal <sjaiswal@redhat.com>

lib/ansible/module_utils/net_tools/nios/api.py

@@ -159,7 +159,7 @@ def member_normalize(member_spec):
                        'ha_port_setting', 'lan_port_setting', 'lan2_physical_setting',
                        'lan_ha_port_setting', 'mgmt_network_setting', 'v6_mgmt_network_setting']
     for key in member_spec.keys():
-        if key in member_elements:
+        if key in member_elements and member_spec[key] is not None:
             member_spec[key] = member_spec[key][0]
         if isinstance(member_spec[key], dict):
             member_spec[key] = member_normalize(member_spec[key])

lib/ansible/modules/net_tools/nios/nios_member.py

@@ -330,11 +330,11 @@ EXAMPLES = '''
     router_id: 150
     node_info:
       - lan_ha_port_setting:
-          ha_ip_address: 192.168.1.70
-          mgmt_lan: 192.168.1.80
+         - ha_ip_address: 192.168.1.70
+           mgmt_lan: 192.168.1.80
       - lan_ha_port_setting:
-          ha_ip_address: 192.168.1.71
-          mgmt_lan: 192.168.1.81
+         - ha_ip_address: 192.168.1.71
+           mgmt_lan: 192.168.1.81
     comment: "Created by Ansible"
     state: present
     provider: