Product_Saver::do_import()

	public function do_import() {
		$builder = new Product_Builder( $this->product, $this->listing, $this->channel_term, $this->catalog );

		$this->save_terms( $builder );
		$this->save_wp_postmeta( $builder );
		$this->save_wp_post( $builder );

		$product = new Product( $this->post_id );
		$product->update_source_data( $this->product );
		$product->update_listing_data( $this->listing );

		$this->save_modifiers( $product );
		$this->save_options( $product );
		$this->save_custom_fields( $product );
		$this->save_images( $builder );

		$this->send_notifications();

		return $this->post_id;
	}