Any valid Maple expression, except an expression sequence,  will satisfy this call.

Expression sequences cannot be allowed, because each element would be interpreted as a separate argument to type.

$\mathrm{type}\left(5^{\frac{1}{2}}\,\mathrm{anything}\right)$

$\mathrm{true}$

$\mathrm{type}\left(\frac{\sin \left(3x\right)}{\mathrm{\pi }}\,\mathrm{anything}\right)$

$\mathrm{true}$