File uploader

functions.php

<?php 

// Add this to your themes functions file 
function wcv_file_uploader( ){ 

	$value = get_user_meta( get_current_user_id(), 'YOURMETAKEYHERE', true ); 

	WCVendors_Pro_Form_Helper::file_uploader( array(  
		'header_text'		=> __('File uploader', 'wcvendors-pro' ), 
		'add_text' 			=> __('Add file', 'wcvendors-pro' ), 
		'remove_text'		=> __('Remove file', 'wcvendors-pro' ), 
		'image_meta_key' 	=> 'YOURMETAKEYHERE', 
		'save_button'		=> __('Add file', 'wcvendors-pro' ), 
		'window_title'		=> __('Select an Image', 'wcvendors-pro' ), 
		'value'				=> $value
		)
	);

}

// call this function in your template 
wcv_file_uploader();

What if we want it required ? Normal attributes not work