Allow reduce_sum to take in tuples and tuples of tuples - #3376

Allow reduce_sum to take in tuples and tuples of tuples#3376

WardBrian merged 4 commits into

stan-dev:developstan-dev/math:developfrom

SteveBronder:test/reduce-sum-tuple-regressions-3041-3359SteveBronder/math:test/reduce-sum-tuple-regressions-3041-3359Copy head branch name to clipboard