6.0.0 use config_id from launch data in API instead of block or config.id
BREAKING CHANGE:
Please note that additional breaking changes will be forthcoming in future versions of this library.
Modified Python API methods to use config_id (the UUID field) exclusively rather than config.id or block.
For the functions changed in 5.0.0 the config_id is available in the launch_data.
Other functions had config.id changed to config_id and block removed as an argument.
The new function config_id_for_block gets that config ID if all you have is a block.