use method
Use a Loader, If preset contains in current RuntimeConfigure
skip it.
Implementation
void use(Loader preset) {
if (_loaders.contains(preset)) return;
/// Register depends loaders.
for (final preset in preset.dependencies) {
use(preset);
}
_loaders.add(preset);
for (final MapEntry(key: keys, value: value)
in preset.load(shouldWarn: shouldWarn(_storage)).dot().entries) {
set(keys, value);
}
}