in scripts/lua/lib/logger.lua [39:48]
function _M.debug(s)
if s == nil then
s = "nil"
elseif type(s) == "table" then
s = utils.serializeTable(s)
elseif type(s) == "boolean" then
s = (s == true) and "true" or "false"
end
os.execute("echo \"" .. s .. "\"")
end