AS01 Asset Master Upload by BAPI_FIXEDASSET_CREATE1

Hi All Currently Client requirement to upload Asset Master through BAPI.So is it the right bapi for use in AS01 Transaction??If so then can you share me the coding for that.I tried but there is required field named No of Similar Assets NASSETS but there is np such field in this bapi so hw can develop this code for Asset Master Updation??Please Share!!