src/cache/class-wordpress-cache-adapter.php
public function fetch( $key ) {
		$key = $this->get_key( $key );
		return wp_cache_get( $key, $this->group );
	}
public function fetch( $key ) {
		$key = $this->get_key( $key );
		return wp_cache_get( $key, $this->group );
	}
public function fetch ( $ key ) { $ key = $ this -> get_key ( $ key ) ; return wp_cache_get ( $ key , $ this -> group ) ; }
Fetch cache data.

@param  string $key

@return mixed
Fetch cache data .