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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def list_container_groups(self, resource_group_name):
 """Lists the container groups in the specified resource group. Arguments: aci_client {azure.mgmt.containerinstance.ContainerInstanceManagementClient} -- An authenticated container instance management client. resource_group {azure.mgmt.resource.resources.models.ResourceGroup} -- The resource group containing the container group(s). """

        print("Listing container groups in resource group '{0}'...".format(resource_group_name))

        container_groups = self.client.container_groups.list_by_resource_group(resource_group_name)

        for container_group in container_groups:
            print("  {0}".format(container_group.name))