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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def real(self):
 """Real part of the element. The real part can also be set using ``x.real = other``, where ``other`` is array-like or scalar. Examples -------- ProductSpace(rn(3), rn(2)).element([ [ 1., 2., 3.], [-1., -2.] ]) The real part can also be set using different array-like types: ProductSpace(cn(3), cn(2)).element([ [ 0.+1.j, 0.+0.j, 0.-3.j], [ 0.+2.j, 0.-3.j] ]) ProductSpace(cn(3), cn(2)).element([ [ 1.+1.j, 1.+0.j, 1.-3.j], [ 1.+2.j, 1.-3.j] ]) ProductSpace(cn(3), cn(2)).element([ [ 2.+1.j, 3.+0.j, 4.-3.j], [ 5.+2.j, 6.-3.j] ]) """

        real_part = [part.real for part in self.parts]
        return self.space.real_space.element(real_part)