The interval [lower, upper].
The confidence level.
The AUC: DeLong's θ (the mean of the placements), or the curve's AUC for the bootstrap.
The method, in full.
DeLong's variance of the AUC (pROC's var(roc)), or the variance of the bootstrap AUCs.
R's warnings, each once, in R's order (an empty array when there are none).
Result of ciAuc.