# Buggy code
def process_public_ip_create_namespace(cmd, namespace):
    get_default_location_from_resource_group(cmd, namespace)
    validate_public_ip_prefix(cmd, namespace)
    validate_tags(namespace)


# Traceback (AttributeError)
Unable to build a model: Unable to deserialize to object: type, AttributeError: 'str' object has no attribute 'get', DeserializationError: Unable to deserialize to object: type, AttributeError: 'str' object has no attribute 'get'
Traceback (most recent call last):
File "/opt/az/lib/python3.6/site-packages/msrest/serialization.py", line 1281, in _deserialize
found_value = key_extractor(attr, attr_desc, data)
File "/opt/az/lib/python3.6/site-packages/msrest/serialization.py", line 1072, in rest_key_case_insensitive_extractor
return attribute_key_case_insensitive_extractor(key, None, working_data)
File "/opt/az/lib/python3.6/site-packages/msrest/serialization.py", line 1095, in attribute_key_case_insensitive_extractor
return data.get(found_key)
AttributeError: 'str' object has no attribute 'get'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/opt/az/lib/python3.6/site-packages/msrest/serialization.py", line 565, in body
data = deserializer._deserialize(data_type, data)
File "/opt/az/lib/python3.6/site-packages/msrest/serialization.py", line 1251, in _deserialize
self._deserialize(local_type, value)
File "/opt/az/lib/python3.6/site-packages/msrest/serialization.py", line 1260, in _deserialize
return self.deserialize_data(data, response)
File "/opt/az/lib/python3.6/site-packages/msrest/serialization.py", line 1466, in deserialize_data
return self.deserialize_type[iter_type](data, data_type[1:-1])
File "/opt/az/lib/python3.6/site-packages/msrest/serialization.py", line 1497, in deserialize_iter
return [self.deserialize_data(a, iter_type) for a in attr]
File "/opt/az/lib/python3.6/site-packages/msrest/serialization.py", line 1497, in <listcomp>
return [self.deserialize_data(a, iter_type) for a in attr]
File "/opt/az/lib/python3.6/site-packages/msrest/serialization.py", line 1479, in deserialize_data
return self._deserialize(obj_type, data)
File "/opt/az/lib/python3.6/site-packages/msrest/serialization.py", line 1291, in _deserialize
raise_with_traceback(DeserializationError, msg, err)
File "/opt/az/lib/python3.6/site-packages/msrest/exceptions.py", line 54, in raise_with_traceback
raise error.with_traceback(exc_traceback)
File "/opt/az/lib/python3.6/site-packages/msrest/serialization.py", line 1281, in _deserialize
found_value = key_extractor(attr, attr_desc, data)
File "/opt/az/lib/python3.6/site-packages/msrest/serialization.py", line 1072, in rest_key_case_insensitive_extractor
return attribute_key_case_insensitive_extractor(key, None, working_data)
File "/opt/az/lib/python3.6/site-packages/msrest/serialization.py", line 1095, in attribute_key_case_insensitive_extractor
return data.get(found_key)
msrest.exceptions.DeserializationError: Unable to deserialize to object: type, AttributeError: 'str' object has no attribute 'get'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/opt/az/lib/python3.6/site-packages/knack/cli.py", line 197, in invoke
cmd_result = self.invocation.execute(args)
File "/opt/az/lib/python3.6/site-packages/azure/cli/core/commands/__init__.py", line 369, in execute
six.reraise(*sys.exc_info())
File "/opt/az/lib/python3.6/site-packages/six.py", line 693, in reraise
raise value
File "/opt/az/lib/python3.6/site-packages/azure/cli/core/commands/__init__.py", line 343, in execute
result = cmd(params)
File "/opt/az/lib/python3.6/site-packages/azure/cli/core/commands/__init__.py", line 182, in __call__
return self.handler(*args, **kwargs)
File "/opt/az/lib/python3.6/site-packages/azure/cli/core/__init__.py", line 436, in default_command_handler
result = op(**command_args)
File "/opt/az/lib/python3.6/site-packages/azure/cli/command_modules/network/custom.py", line 2774, in create_public_ip
return client.create_or_update(resource_group_name, public_ip_address_name, public_ip)
File "/opt/az/lib/python3.6/site-packages/azure/mgmt/network/v2018_08_01/operations/public_ip_addresses_operations.py", line 274, in create_or_update
**operation_config
File "/opt/az/lib/python3.6/site-packages/azure/mgmt/network/v2018_08_01/operations/public_ip_addresses_operations.py", line 219, in _create_or_update_initial
body_content = self._serialize.body(parameters, 'PublicIPAddress')
File "/opt/az/lib/python3.6/site-packages/msrest/serialization.py", line 568, in body
SerializationError, "Unable to build a model: "+str(err), err)
File "/opt/az/lib/python3.6/site-packages/msrest/exceptions.py", line 54, in raise_with_traceback
raise error.with_traceback(exc_traceback)
File "/opt/az/lib/python3.6/site-packages/msrest/serialization.py", line 565, in body
data = deserializer._deserialize(data_type, data)
File "/opt/az/lib/python3.6/site-packages/msrest/serialization.py", line 1251, in _deserialize
self._deserialize(local_type, value)
File "/opt/az/lib/python3.6/site-packages/msrest/serialization.py", line 1260, in _deserialize
return self.deserialize_data(data, response)
File "/opt/az/lib/python3.6/site-packages/msrest/serialization.py", line 1466, in deserialize_data
return self.deserialize_type[iter_type](data, data_type[1:-1])
File "/opt/az/lib/python3.6/site-packages/msrest/serialization.py", line 1497, in deserialize_iter
return [self.deserialize_data(a, iter_type) for a in attr]
File "/opt/az/lib/python3.6/site-packages/msrest/serialization.py", line 1497, in <listcomp>
return [self.deserialize_data(a, iter_type) for a in attr]
File "/opt/az/lib/python3.6/site-packages/msrest/serialization.py", line 1479, in deserialize_data
return self._deserialize(obj_type, data)
File "/opt/az/lib/python3.6/site-packages/msrest/serialization.py", line 1291, in _deserialize
raise_with_traceback(DeserializationError, msg, err)
File "/opt/az/lib/python3.6/site-packages/msrest/exceptions.py", line 54, in raise_with_traceback
raise error.with_traceback(exc_traceback)
File "/opt/az/lib/python3.6/site-packages/msrest/serialization.py", line 1281, in _deserialize
found_value = key_extractor(attr, attr_desc, data)
File "/opt/az/lib/python3.6/site-packages/msrest/serialization.py", line 1072, in rest_key_case_insensitive_extractor
return attribute_key_case_insensitive_extractor(key, None, working_data)
File "/opt/az/lib/python3.6/site-packages/msrest/serialization.py", line 1095, in attribute_key_case_insensitive_extractor
return data.get(found_key)
msrest.exceptions.SerializationError: Unable to build a model: Unable to deserialize to object: type, AttributeError: 'str' object has no attribute 'get', DeserializationError: Unable to deserialize to object: type, AttributeError: 'str' object has no attribute 'get'

# Fixed code
def process_public_ip_create_namespace(cmd, namespace):
    get_default_location_from_resource_group(cmd, namespace)
    validate_public_ip_prefix(cmd, namespace)
    validate_ip_tags(cmd, namespace)
    validate_tags(namespace)