Karakterisasi Senyawa dan Uji Aktivitas Penghambatan Enzim α-Glukosidase, Dipeptidil Peptidase-IV, dan Antioksidan dari Ekstrak Metanol Diospyros malabarica (Desr.) Kostel = Compounds Characterization and Assay of α-Glukosidase and Dipeptidyl Peptidase-IV Enzyme Inhibitory Activity, and Antioxidant Evaluation of Methanol Extracts of Diospyros malabarica (Desr.) Kostel