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function edd_checkout_cart_columns() {
  global $wp_filter;
	$head_first = 0;
	$head_last  = 0;
	if( isset( $wp_filter['edd_checkout_table_header_first'] ) ){
		$head_first = count( $wp_filter['edd_checkout_table_header_first'] );
	}
	if( isset( $wp_filter['edd_checkout_table_header_last'] ) ){
		$head_last = count( $wp_filter['edd_checkout_table_header_last'] );
	}

	$default    = 3;


	return apply_filters( 'edd_checkout_cart_columns', $head_first + $head_last + $default );
}