declare namespace ObjC{
   namespace classes{
      
       export class UIPickerView extends NSObject{ 
            	numberOfRowsInComponent_(component:number|NativePointer):number;
            	rowSizeForComponent_(component:number|NativePointer):NSObject;
            	viewForRow_forComponent_(row:number|NativePointer,component:number|NativePointer):NSObject;
            	reloadAllComponents():any;
            	reloadComponent_(component:number|NativePointer):any;
            	selectRow_inComponent_animated_(row:number|NativePointer,component:number|NativePointer,animated:number|NativePointer):any;
            	selectedRowInComponent_(component:number|NativePointer):number;
            	dataSource():NativePointer;
            	setDataSource_(dataSource:NativePointer|NativePointer):any;
            	delegate():NativePointer;
            	setDelegate_(delegate:NativePointer|NativePointer):any;
            	showsSelectionIndicator():number;
            	setShowsSelectionIndicator_(showsSelectionIndicator:number|NativePointer):any;
            	numberOfComponents():number;
       }
    }
}