dpctl.memory.MemoryUSMShared(np.int64(16)) should work

[oleksandr-pavlyk]

In [4]: dpctl.memory.MemoryUSMShared(np.int64(16384))
---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
<ipython-input-4-abef76d3355f> in <module>()
----> 1 dpctl.memory.MemoryUSMShared(np.int64(16384))

/localdisk/work/opavlyk/repos/dpctl/dpctl/memory/_memory.pyx in dpctl.memory._memory.MemoryUSMShared.__cinit__()

/localdisk/work/opavlyk/repos/dpctl/dpctl/memory/_memory.pyx in dpctl.memory._memory._Memory._cinit_other()

ValueError: Argument 16384 does not expose `__sycl_usm_array_interface__`.

In [5]: dpctl.memory.MemoryUSMShared(16384)
Out[5]: <Intel(R) USM allocated memory block of 16384 bytes at 0x55f2202e3000>

[oleksandr-pavlyk]

Discovered while reviewing #184

[PokhodenkoSA]

Good case for expected failure test into our unittest system.