Source

File: wp-admin/includes/class-wp-links-list-table.php

public function column_cb( $link ) {
		?>
		<label class="screen-reader-text" for="cb-select-<?php echo $link->link_id; ?>">
			<?php
			/* translators: %s: Link name. */
			printf( __( 'Select %s' ), $link->link_name );
			?>
		</label>
		<input type="checkbox" name="linkcheck[]" id="cb-select-<?php echo $link->link_id; ?>" value="<?php echo esc_attr( $link->link_id ); ?>" />
		<?php
	}