Question: Kernel & image of a function in Maple

Hi! is there an option in Maple that can calculate a kernel and an image of a function. e.g. f: C -> R (complex to real numbers under addition) complex numbers expressed as w = x + i*y f(x + i*y) = x+y need to find ker(f) and im(f) - kernel and image of f. many thanx!
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