"""Mean[ResourceFunction[    """"QuadraticFormDistribution""""][{{{1, 1/2}, {1/2, 1}}, {Subscript[b, 1], Subscript[b, 2]}, c}, {{0, 1}, {{1, 0}, {0, 1}}}]] /. {Subscript[b, 1] -> 1, Subscript[b, 2] -> I, c -> I}"""
{}