code: function (_aButtons, fnContextMenuHandler, aElementOverlays) {
  			this.removeAllButtons();
  
  			_aButtons.forEach(function (oButton) {
  				this.addMenuButton(oButton, fnContextMenuHandler, aElementOverlays);
  			}.bind(this));
  		}
docs: Sets the Buttons of the ContextMenu
  @param {Array} _aButtons the Buttons to insert
  @param {function} fnContextMenuHandler - the source
  @param {sap.ui.dt.ElementOverlay[]} aElementOverlays - Target overlays
  @public