the_editor

apply_filters( 'the_editor', string $output )

$the_editor = apply_filters(
	'the_editor',
	'<div id="wp-' . $editor_id_attr . '-editor-container" class="wp-editor-container">' .
	$quicktags_toolbar .
	'<textarea' . $editor_class . $height . $tabindex . $autocomplete . ' cols="40" name="' . esc_attr( $set['textarea_name'] ) . '" ' .
	'id="' . $editor_id_attr . '">%s</textarea></div>'
);