src/types/class-papi-entry-type.php
public function get_body_classes() {
		$arr = $this->body_classes();
		$arr = is_string( $arr ) ? [$arr] : $arr;
		$arr = is_array( $arr ) ? $arr : [];

		return array_merge( $arr, [] );
	}
public function get_body_classes() {
		$arr = $this->body_classes();
		$arr = is_string( $arr ) ? [$arr] : $arr;
		$arr = is_array( $arr ) ? $arr : [];

		return array_merge( $arr, [] );
	}
Get admin body css classes.

Use `body_classes` method to add custom admin body classes.

@return array