Setting Entry Meta Style Only Show in Single

I try to use entry meta style from here https://docs.generatepress.com/article/entry-meta-style/
I used example 2. But it is show on hompepage even I disable author on single.

Can you help me to change the code to show in single only?

add_filter( 'generate_header_entry_meta_items', '__return_empty_array' );

add_action( 'generate_after_entry_title', function() {
    $header_post_types = apply_filters(
		'generate_entry_meta_post_types',
		array(
			'post',
		)
    );

    if ( ! in_array( get_post_type(), $header_post_types ) ) {
        return;
    }
    ?>
        <div class="entry-meta entry-meta-container">
            <div class="entry-meta-gravatar">
                <?php echo get_avatar( get_the_author_meta( 'ID' ) ); ?>
            </div>

            <div class="entry-meta-info">
                <div class="entry-meta-author">
                    <?php generate_do_post_meta_item( 'author' ); ?> in <?php generate_do_post_meta_item( 'categories' ); ?>
                </div>

                <div class="entry-meta-date">
                    <?php generate_do_post_meta_item( 'date' ); ?>
                </div>
            </div>
        </div>
    <?php
} );

.entry-meta-container {
    display: flex;
    align-items: center;
}

.entry-meta-gravatar {
    margin-right: 10px;
}

.entry-meta-gravatar img {
    width: 50px;
    border-radius: 50%;
}

.entry-meta-info {
    display: block;
}