The type(x, foreign) calling sequence returns true if x is a so-called FOREIGN DAG. See the appendix to the programming manual for more details. In the C API functions, FOREIGN DAGs are called Maple Pointers.

type/python

$\mathrm{type}\left(1\,\mathrm{foreign}\right)$

$\mathrm{false}$

$\mathrm{type}\left(\sin \left(x\right)\,\mathrm{foreign}\right)$

$\mathrm{false}$

$\mathrm{dictionary}≔\mathrm{Python}:-\mathrm{EvalString}\left(''\{\}''\right)$

$\mathrm{type}\left(\mathrm{dictionary}\,\mathrm{foreign}\right)$

$\mathrm{true}$

The type/foreign command was introduced in Maple 2022.

For more information on Maple 2022 changes, see Updates in Maple 2022.