public function render_screen(){
		$this->register_batches();
		?>
		<div class="wrap">
			<h2><?php $this->_e('Do Batch Actions') ?></h2>
			<?php if( $this->batches ): ?>
			<form id="batch-form" method="post" action="<?= admin_url('admin-ajax.php') ?>">
				<input type="hidden" name="action" value="wpametu_batch">
				<?php wp_nonce_field('wpametu_batch') ?>
				<input type="hidden" name="page_num" id="page_num" value="1" />
				<ol class="batch-container">
				<?php
					$counter = 0;
					foreach( $this->batches as $batch_class ):
						$counter++;
						/** @var Batch $batch */
						$batch = $batch_class::get_instance();
						$option = $this->option;
						if( isset($option[$batch_class]) ){
							$last = $option[$batch_class];
						}else{
							$last = false;
						}
				?>
				<li>
					<input type="radio" id="batch-<?= $counter ?>" name="batch_class" value="<?= esc_attr(get_class($batch)) ?>" />
					<label for="batch-<?= $counter ?>">
						<span class="dashicons dashicons-yes"></span>
						<strong><?= esc_html($batch->title) ?></strong><small>ver <?= esc_html($batch->version) ?></small>
						<span class="description"><?= nl2br(esc_html($batch->description)) ?></span>
						<?php if( false === $last ): ?>
							<span class="executed not-yet"><?php $this->_e('Never executed') ?></span>
						<?php else: ?>
							<span class="executed"><?= date_i18n(get_option('date_format').' '.get_option('time_format'), $last) ?></span>
						<?php endif; ?>
					</label>
				</li>
				<?php endforeach; ?>
				</ol>
				<?php submit_button($this->__('Execute')) ?>
				<div class="loader">
					<div><span class="dashicons dashicons-update"></span></div>
				</div>
			</form>
			<div id="batch-result">
				<h3><span class="dashicons dashicons-media-code"></span> <?php $this->_e('Console') ?></h3>
				<div class="console">

				</div>
			</div>
			<?php else: ?>
			<div class="error"><p><?php $this->_e('There is no classes.') ?></p></div>
			<?php endif; ?>
		</div>
		<?php
	}