Is there any negative performance impact with chaining include commands on nginx?

For example, are any of these worse than any of the others from a performance perspective:

In nginx.conf:
include domain_config_1.conf;
include domain_config_2.conf;

OR

In nginx.conf:
include domain_configs.conf;

In domain_configs.conf:
include domain_config_1.conf;
include domain_config_2.conf;

OR

In nginx.conf:
include domain_configs.conf;

In domain_configs.conf:
include domain_config_list.conf;

In domain_config_list.conf:
include domain_config_1.conf;
include domain_config_2.conf;