Extracts model coefficients from objects with class SBM and children (SimpleSBM_fit,
BipartiteSBM_fit)
an R6 object inheriting from class SBM_fit (like SimpleSBM_fit or BipartiteSBM_fit)
type of parameter that should be extracted. Either 'block' for $$\pi$$, 'connectivity' for $$\theta$$, or "covariates" for $$\beta$$. Default is 'connectivity'.
additional parameters for S3 compatibility. Not used
vector or list of parameters.