public function setEditedAt($edited_at) {
        
        $this -> edited_at = $edited_at !== null ? new \DateTime($edited_at) : null;
        return $this;
    }
public function setEditedAt($edited_at) {
        
        $this -> edited_at = $edited_at !== null ? new \DateTime($edited_at) : null;
        return $this;
    }
public function setEditedAt ( $ edited_at ) { $ this -> edited_at = $ edited_at !== null ? new \ DateTime ( $ edited_at ) : null ; return $ this ; }
Sets the edited at
@param string $edited_at
@return TimestampAwareTrait
Sets the edited at