code: function(scopeId, selectionService) {
  			if (!this._contributionsByScopeId[scopeId]) {
  				this._contributionsByScopeId[scopeId] = {};
  			}
  			this._contributionsByScopeId[scopeId].localSelectionService = selectionService;
  		}
docs: Register a selection service that should be used for certain command scopes.
  @param {String} scopeId The id describing the scope for which this selection service applies.  Required.
  Only contributions made to this scope will use the selection service.
  @param {orion.selection.Selection} selectionService the selection service for the scope.