WP_Theme_JSON::get_property_value( array $styles, array $path, array $theme_json = null ): string|array

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			if ( ! empty( $outer ) && ! empty( $inner ) ) {
				$selectors_scoped[] = $outer . ' ' . $inner;
			} elseif ( empty( $outer ) ) {
				$selectors_scoped[] = $inner;
			} elseif ( empty( $inner ) ) {
				$selectors_scoped[] = $outer;
			}
		}
	}

	$result = implode( ', ', $selectors_scoped );
	return $result;
}

/**
 * Scopes the selectors for a given style node.
 *
 * This includes the primary selector, i.e. `$node['selector']`, as well as any custom
 * selectors for features and subfeatures, e.g. `$node['selectors']['border']` etc.
 *
 * @since 6.6.0
 *
 * @param string $scope Selector to scope to.
 * @param array  $node  Style node with selectors to scope.
 * @return array Node with updated selectors.
 */
protected static function scope_style_node_selectors( $scope, $node ) {
	$node['selector'] = static::scope_selector( $scope, $node['selector'] );

	if ( empty( $node['selectors'] ) ) {
		return $node;
	}

	foreach ( $node['selectors'] as $feature => $selector ) {
		if ( is_string( $selector ) ) {
			$node['selectors'][ $feature ] = static::scope_selector( $scope, $selector );
		}
		if ( is_array( $selector ) ) {
			foreach ( $selector as $subfeature => $subfeature_selector ) {
				$node['selectors'][ $feature ][ $subfeature ] = static::scope_selector( $scope, $subfeature_selector );
			}
		}
	}

	return $node;

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