The cross-family route
drmTMB(bf(...), c(fam1, fam2), engine = "julia") is experimental and
partial. This summary reports point estimates only: the bridge does not retain a named
covariance matrix, so standard errors and Wald intervals are deliberately
unavailable.
Usage
# S3 method for class 'drmTMB_julia_xfam'
summary(object, conf.int = FALSE, ...)