Family
@Serializable
Opt-in configuration for the family-frequency bootstrap analysis — a separate (continuous-only) analysis that resamples the data numSamples times, re-runs the full fit + evaluation on each resample, and tallies how often each family is recommended. It quantifies recommendation/model-selection stability.
The estimators, scoring models, evaluation method, and automatic shifting are reused from the enclosing FitConfiguration (it bootstraps the same fitting process). A positive streamNumber makes the analysis reproducible; 0 draws the next stream. When this config is absent, the analysis is not run.