Method code for $root.list_methods()

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arg gen, def, fltr, match;
var ancs, a, m, i, methods;

if (!.has_flag('methods, sender()))
    throw(~perm, sender() + " cannot view methods on " + this());
if (def)
    ancs = [def];
else
    ancs = .(gen[1])(gen[2]) || [this()];
methods = #[];
for a in (ancs) {
    for m in (a.methods()) {
        if (tostr(m).(match)(fltr) != 0) {
            i = a.method_info(m);
            methods = methods.add_elem(i[5], [a, m, @i]);
        }
    }
}
return methods;

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// Created as a part of ColdCore, see: @help Credit