eces to the graph.
		 *
		 * @param WPSEO_Schema_Context $context An object with context variables.
		 *
		 * @api array $pieces The schema pieces.
		 */
		return apply_filters( 'wpseo_schema_graph_pieces', $pieces, $this->context );
	}

	/**
	 * Parse the blocks and pass them on to our head.
	 */
	private function parse_blocks() {
		if ( ! function_exists( 'parse_blocks' ) ) {
			return;
		}

		if ( ! is_singular() ) {
			return;
		}

		$this->get_parsed_blocks();
		foreach ( array_keys( $this->parsed_blocks ) as $block_type ) {
			/**
			 * Filter: 'wpseo_pre_schema_block_type_<block-type>' - Allows hooking things to change graph output based on the blocks on the page.
			 *
			 * @param string               $block_type The block type.
			 * @param array                $blocks     All the blocks of this block type.
			 * @param WPSEO_Schema_Context $context    A value object with context variables.
			 */
			do_action( 'wpseo_pre_schema_block_type_' . $block_type, $this->parsed_blocks[ $block_type ], $this->context );
		}
	}

	/**
	 * Parse the blocks and loop through them.
	 */
	private function get_parsed_blocks() {
		$post          = get_post();
		$parsed_blocks = parse_blocks( $post->post_content );

		foreach ( $parsed_blocks as $block ) {
			if ( ! isset( $this->parsed_blocks[ $block['blockName'] ] ) || ! is_array( $this->parsed_blocks[ $block['blockName'] ] ) ) {
				$this->parsed_blocks[ $block['blockName'] ] = [];
			}
			$this->parsed_blocks[ $block['blockName'] ][] = $block;
		}
	}
}