added timestamps to nxos_command module (#50261)

* added timestamps to nxos_command module

nxos_command module now returns timestamps field, which shows command execution time

* –fixed unit test failure for /lib/ansible/module_utils/basic

* cosmetic changes to align with PEP 8

lib/ansible/plugins/cliconf/nxos.py

@@ -23,6 +23,7 @@ import json
 import re
 
 from ansible.errors import AnsibleConnectionFailure
+from ansible.module_utils.basic import get_timestamp
 from ansible.module_utils._text import to_bytes, to_text
 from ansible.module_utils.common._collections_compat import Mapping
 from ansible.module_utils.connection import ConnectionError
@@ -187,6 +188,7 @@ class Cliconf(CliconfBase):
             raise ValueError("'commands' value is required")
 
         responses = list()
+        timestamps = list()
         for cmd in to_list(commands):
             if not isinstance(cmd, Mapping):
                 cmd = {'command': cmd}
@@ -196,6 +198,7 @@ class Cliconf(CliconfBase):
                 cmd['command'] = self._get_command_with_output(cmd['command'], output)
 
             try:
+                timestamp = get_timestamp()
                 out = self.send_command(**cmd)
             except AnsibleConnectionFailure as e:
                 if check_rc is True:
@@ -214,7 +217,8 @@ class Cliconf(CliconfBase):
                     pass
 
                 responses.append(out)
-        return responses
+                timestamps.append(timestamp)
+        return responses, timestamps
 
     def get_device_operations(self):
         return {