Original Class

<?php

class WC_Swatch_Picker {

    private $size;
    private $attributes;
    private $selected_attributes;
    private $swatch_type_options;

    public function __construct( $product_id, $attributes, $selected_attributes ) {
        $this->swatch_type_options = maybe_unserialize( get_post_meta( $product_id, '_swatch_type_options', true ) );

        if ( !$this->swatch_type_options ) {
            $this->swatch_type_options = array();
        }

        $product_configured_size = get_post_meta( $product_id, '_swatch_size', true );
        if ( !$product_configured_size ) {
            $this->size = 'swatches_image_size';
        } else {
            $this->size = $product_configured_size;
        }

        $this->attributes = $attributes;
        $this->selected_attributes = $selected_attributes;
    }

    public function picker() {
        ?>

        <table class="variations-table" cellspacing="0">
            <tbody>
                <?php
                $loop = 0;
                foreach ( $this->attributes as $name => $options ) : $loop++;
                    $st_name = sanitize_title( $name );
                    $hashed_name = md5( $st_name );
                    $lookup_name = '';
                    if ( isset( $this->swatch_type_options[$hashed_name] ) ) {
                        $lookup_name = $hashed_name;
                    } elseif ( isset( $this->swatch_type_options[$st_name] ) ) {
                        $lookup_name = $st_name;
                    }
                    ?>
                    <tr>
                        <td class="label"><label for="<?php echo $st_name; ?>"><?php echo WC_Swatches_Compatibility::wc_attribute_label( $name ); ?></label></td>
                        <td>
                            <?php
                            if ( isset( $this->swatch_type_options[$lookup_name] ) ) {
                                $picker_type = $this->swatch_type_options[$lookup_name]['type'];
                                if ( $picker_type == 'default' ) {
                                    $this->render_default( $st_name, $options );
                                } else {
                                    $this->render_picker( $st_name, $options, $name );
                                }
                            } else {
                                $this->render_default( $st_name, $options );
                            }
                            ?>
                        </td>
                    </tr>
                <?php endforeach; ?>
            </tbody>
        </table>
        <?php
    }

//More public_funtions here....

}