This interface currently defaults to reading an integer vector. This is
suitable for R objects as a raw vector used for (de)serialization can be
mapped easily to an integer vector. It is also possible to memcpy
to
the contiguous memory of an integer vector should other (non-R) data
be transferred.
Usage
tiledb_vfs_read(fh, offset, nbytes, ctx = tiledb_get_context())