'Gets a list of virtual machine extension image types.
:param location: The name of a supported Azure region.
:type location: str
:param publisher_name:
:type publisher_name: str
:param dict custom_headers: headers that will be added to the request
:param bool raw: returns the direct response alongside the
deserialized response
:param operation_config: :ref:`Operation configuration
overrides<msrest:optionsforoperations>`.
:return: list of :class:`VirtualMachineExtensionImage
<azure.mgmt.compute.compute.v2017_03_30.models.VirtualMachineExtensionImage>`
or :class:`ClientRawResponse<msrest.pipeline.ClientRawResponse>` if
raw=true
:rtype: list of :class:`VirtualMachineExtensionImage
<azure.mgmt.compute.compute.v2017_03_30.models.VirtualMachineExtensionImage>`
or :class:`ClientRawResponse<msrest.pipeline.ClientRawResponse>`
:raises: :class:`CloudError<msrestazure.azure_exceptions.CloudError>`'

def list_types(self, location, publisher_name, custom_headers=None, raw=False, **operation_config):

    url = '/subscriptions/{subscriptionId}/providers/Microsoft.Compute/locations/{location}/publishers/{publisherName}/artifacttypes/vmextension/types'
    path_format_arguments = {'location': self._serialize.url('location', location, 'str'), 'publisherName': self._serialize.url('publisher_name', publisher_name, 'str'), 'subscriptionId': self._serialize.url('self.config.subscription_id', self.config.subscription_id, 'str')}
    url = self._client.format_url(url, **path_format_arguments)
    query_parameters = {}
    query_parameters['api-version'] = self._serialize.query('self.api_version', self.api_version, 'str')
    header_parameters = {}
    header_parameters['Content-Type'] = 'application/json;    charset=utf-8'
    if self.config.generate_client_request_id:
        header_parameters['x-ms-client-request-id'] = str(uuid.uuid1())
    if custom_headers:
        header_parameters.update(custom_headers)
    if (self.config.accept_language is not None):
        header_parameters['accept-language'] = self._serialize.header('self.config.accept_language', self.config.accept_language, 'str')
    request = self._client.get(url, query_parameters)
    response = self._client.send(request, header_parameters, **operation_config)
    if (response.status_code not in [200]):
        exp = CloudError(response)
        exp.request_id = response.headers.get('x-ms-request-id')
        raise exp
    deserialized = None
    if (response.status_code == 200):
        deserialized = self._deserialize('[VirtualMachineExtensionImage]', response)
    if raw:
        client_raw_response = ClientRawResponse(deserialized, response)
        return client_raw_response
    return deserialized
