ST_MPOLYFROMWKB

ST_MPolyFromWKB(wkb[, srid [, options]]), ST_MultiPolygonFromWKB(wkb[,
srid [, options]])

Constructs a MultiPolygon value using its WKB representation and SRID.

These functions handle their arguments as described in the introduction
to this section.

URL: https://dev.mysql.com/doc/refman/8.0/en/gis-wkb-functions.html