'Extract server params from keyword args to create a VS
:param   kwargs: keyword args
:return: ``dict``'

@staticmethod
def _create_args_to_params(**kwargs):

    params = ['ex_cpu_sockets', 'ex_cpu_threads', 'ex_enable_autoscale', 'ex_data_store_group_primary_id', 'ex_data_store_group_swap_id', 'ex_hypervisor_group_id', 'ex_hypervisor_id', 'ex_initial_root_password', 'ex_note', 'ex_primary_disk_min_iops', 'ex_primary_network_id', 'ex_primary_network_group_id', 'ex_recipe_ids', 'ex_required_automatic_backup', 'ex_required_virtual_machine_startup', 'ex_required_virtual_machine_startup', 'ex_selected_ip_address_id', 'ex_swap_disk_min_iops', 'ex_type_of_format', 'ex_custom_recipe_variables', 'ex_licensing_key', 'ex_licensing_server_id', 'ex_licensing_type']
    server_params = {}
    for p in params:
        value = kwargs.get(p)
        if value:
            server_params[p[3:]] = value
    return server_params
