-- Merge table t2 into t1 (overwrites t1 keys) function table_utils.merge(t1, t2) for k, v in pairs(t2) do t1[k] = v end return t1 end

-- Check if value is a number within range function validate.is_in_range(val, min, max) return type(val) == "number" and val >= min and val <= max end

file_utils.write_file("test.txt", "Lua rocks!") print(file_utils.read_file("test.txt"))