This is a sub-issue offocused on correctly adding @param and @return type hinting to the Comment module.
Documentation patches that include type hinting are time consuming to both review and commit because one must dig into the actual code to confirm that the type hints are both correct and complete. Hence, please be patient and try to limit type hint patches to covering only a limited number of docblocks (10-15 as a guess).
Related sprint issues:
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