wp-includes/block-supports/dimensions.php:98Checks whether an aspectRatio block-support value is explicitly set.
$aspect_ratiomixedboolfunction wp_is_explicit_aspect_ratio_value( $aspect_ratio ) { if ( ! is_string( $aspect_ratio ) && ! is_numeric( $aspect_ratio ) ) { return false; } $aspect_ratio = strtolower( trim( (string) $aspect_ratio ) ); return '' !== $aspect_ratio && 'auto' !== $aspect_ratio;}Introduced in 7.1.0.
Signature, return type and hooks compared across 1 parsed release.
src/wp-includes/block-supports/dimensions.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.