# Buggy code
def get_diff(
    self,
    candidate=None,
    running=None,
    diff_match="line",
    diff_ignore_lines=None,
    path=None,
    diff_replace="line",
):
    diff = {}
    device_operations = self.get_device_operations()
    option_values = self.get_option_values()

    if candidate is None and device_operations["supports_generate_diff"]:
        raise ValueError("candidate configuration is required to generate diff")

    if diff_match not in option_values["diff_match"]:
        raise ValueError(
            "'match' value %s in invalid, valid values are %s"
            % (diff_match, ", ".join(option_values["diff_match"]))
        )

    if diff_replace not in option_values["diff_replace"]:
        raise ValueError(
            "'replace' value %s in invalid, valid values are %s"
            % (diff_replace, ", ".join(option_values["diff_replace"]))
        )

    # prepare candidate configuration
    candidate_obj = NetworkConfig(indent=3)
    candidate_obj.load(candidate)

    if running and diff_match != "none" and diff_replace != "config":
        # running configuration
        running_obj = NetworkConfig(
            indent=3, contents=running, ignore_lines=diff_ignore_lines
        )
        configdiffobjs = candidate_obj.difference(
            running_obj, path=path, match=diff_match, replace=diff_replace
        )

    else:
        configdiffobjs = candidate_obj.items

    diff["config_diff"] = dumps(configdiffobjs, "commands") if configdiffobjs else ""
    return diff


# Traceback (TypeError)
TASK [azure_load_balancer : Get lbs] *********************************************************************************************
task path: /home/vmadmin/cluster_build/roles/azure_load_balancer/tasks/main.yaml:15
Using module file /home/vmadmin/.local/lib/python2.7/site-packages/ansible/modules/cloud/azure/azure_rm_loadbalancer_facts.py
<localhost> ESTABLISH LOCAL CONNECTION FOR USER: vmadmin
<localhost> EXEC /bin/sh -c 'echo ~ &amp;&amp; sleep 0'
<localhost> EXEC /bin/sh -c '( umask 77 &amp;&amp; mkdir -p "` echo /home/vmadmin/.ansible/tmp/ansible-tmp-1504708358.3-41710485333814 `" &amp;&amp; echo ansible-tmp-1504708358.3-41710485333814="` echo /home/vmadmin/.ansible/tmp/ansible-tmp-1504708358.3-41710485333814 `" ) &amp;&amp; sleep 0'
<localhost> PUT /tmp/tmpy_CiqC TO /home/vmadmin/.ansible/tmp/ansible-tmp-1504708358.3-41710485333814/azure_rm_loadbalancer_facts.py
<localhost> EXEC /bin/sh -c 'chmod u+x /home/vmadmin/.ansible/tmp/ansible-tmp-1504708358.3-41710485333814/ /home/vmadmin/.ansible/tmp/ansible-tmp-1504708358.3-41710485333814/azure_rm_loadbalancer_facts.py &amp;&amp; sleep 0'
<localhost> EXEC /bin/sh -c '/usr/bin/python /home/vmadmin/.ansible/tmp/ansible-tmp-1504708358.3-41710485333814/azure_rm_loadbalancer_facts.py; rm -rf "/home/vmadmin/.ansible/tmp/ansible-tmp-1504708358.3-41710485333814/" > /dev/null 2>&amp;1 &amp;&amp; sleep 0'
The full traceback is:
Traceback (most recent call last):
File "/tmp/ansible_VTaHxN/ansible_module_azure_rm_loadbalancer_facts.py", line 180, in <module>
main()
File "/tmp/ansible_VTaHxN/ansible_module_azure_rm_loadbalancer_facts.py", line 177, in main
AzureRMLoadBalancerFacts()
File "/tmp/ansible_VTaHxN/ansible_module_azure_rm_loadbalancer_facts.py", line 123, in __init__
facts_module=True
File "/tmp/ansible_VTaHxN/ansible_modlib.zip/ansible/module_utils/azure_rm_common.py", line 255, in __init__
File "/tmp/ansible_VTaHxN/ansible_module_azure_rm_loadbalancer_facts.py", line 133, in exec_module
else self.list_items()
File "/tmp/ansible_VTaHxN/ansible_module_azure_rm_loadbalancer_facts.py", line 162, in list_items
response = self.network_client.load_balancers.list()
TypeError: list() takes at least 2 arguments (1 given)

fatal: [localhost]: FAILED! => {
"changed": false,
"failed": true,
"module_stderr": "Traceback (most recent call last):\n  File \"/tmp/ansible_VTaHxN/ansible_module_azure_rm_loadbalancer_facts.py\", line 180, in <module>\n    main()\n  File \"/tmp/ansible_VTaHxN/ansible_module_azure_rm_loadbalancer_facts.py\", line 177, in main\n    AzureRMLoadBalancerFacts()\n  File \"/tmp/ansible_VTaHxN/ansible_module_azure_rm_loadbalancer_facts.py\", line 123, in __init__\n    facts_module=True\n  File \"/tmp/ansible_VTaHxN/ansible_modlib.zip/ansible/module_utils/azure_rm_common.py\", line 255, in __init__\n  File \"/tmp/ansible_VTaHxN/ansible_module_azure_rm_loadbalancer_facts.py\", line 133, in exec_module\n    else self.list_items()\n  File \"/tmp/ansible_VTaHxN/ansible_module_azure_rm_loadbalancer_facts.py\", line 162, in list_items\n    response = self.network_client.load_balancers.list()\nTypeError: list() takes at least 2 arguments (1 given)\n",
"module_stdout": "",
"msg": "MODULE FAILURE",
"rc": 0
}

# Fixed code
def get_diff(
    self,
    candidate=None,
    running=None,
    diff_match="line",
    diff_ignore_lines=None,
    path=None,
    diff_replace="line",
):
    diff = {}
    device_operations = self.get_device_operations()
    option_values = self.get_option_values()

    if candidate is None and device_operations["supports_generate_diff"]:
        raise ValueError("candidate configuration is required to generate diff")

    if diff_match not in option_values["diff_match"]:
        raise ValueError(
            "'match' value %s in invalid, valid values are %s"
            % (diff_match, ", ".join(option_values["diff_match"]))
        )

    if diff_replace not in option_values["diff_replace"]:
        raise ValueError(
            "'replace' value %s in invalid, valid values are %s"
            % (diff_replace, ", ".join(option_values["diff_replace"]))
        )

    # prepare candidate configuration
    candidate_obj = NetworkConfig(indent=3, ignore_lines=diff_ignore_lines)
    candidate_obj.load(candidate)

    if running and diff_match != "none" and diff_replace != "config":
        # running configuration
        running_obj = NetworkConfig(
            indent=3, contents=running, ignore_lines=diff_ignore_lines
        )
        configdiffobjs = candidate_obj.difference(
            running_obj, path=path, match=diff_match, replace=diff_replace
        )

    else:
        configdiffobjs = candidate_obj.items

    diff["config_diff"] = dumps(configdiffobjs, "commands") if configdiffobjs else ""
    return diff