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function wp_get_post_content_block_attributes() {
	global $post_ID;

	$is_block_theme = wp_is_block_theme();

	if ( ! $is_block_theme || ! $post_ID ) {
		return null;
	}

	$template_slug = get_page_template_slug( $post_ID );

	if ( ! $template_slug ) {
		$post_slug      = 'singular';
		$page_slug      = 'singular';
		$template_types = get_block_templates();

		foreach ( $template_types as $template_type ) {
			if ( 'page' === $template_type->slug ) {
				$page_slug = 'page';
			}
			if ( 'single' === $template_type->slug ) {
				$post_slug = 'single';
			}
		}

		$what_post_type = get_post_type( $post_ID );
		switch ( $what_post_type ) {
			case 'page':
				$template_slug = $page_slug;
				break;
			default:
				$template_slug = $post_slug;
				break;
		}
	}

	$current_template = get_block_templates( array( 'slug__in' => array( $template_slug ) ) );

	if ( ! empty( $current_template ) ) {
		$template_blocks    = parse_blocks( $current_template[0]->content );
		$post_content_block = wp_get_first_block( $template_blocks, 'core/post-content' );

		if ( isset( $post_content_block['attrs'] ) ) {
			return $post_content_block['attrs'];
		}
	}

	return null;
}