pub fn get_preset<GC>(
    name: &Option<PresetId>,
    preset_for_name: impl FnOnce(&PresetId) -> Option<Vec<u8>>
) -> Option<Vec<u8>>
Expand description

Get the default GenesisConfig as a JSON blob if name is None.

Query of named presets is delegetaed to provided preset_for_name closure. For more info refer to sp_genesis_builder::GenesisBuilder::get_preset.