question: gets motechuser with given email concode_field_sep MotechUsersDataService dataService concode_field_sep void add concode_elem_sep List<MotechUser> findByRole concode_elem_sep MotechUser findByUserName concode_elem_sep List<MotechUser> getUsers concode_elem_sep void addOpenIdUser concode_elem_sep void update concode_elem_sep MotechUser findUserByOpenId concode_elem_sep List<MotechUser> getOpenIdUsers concode_elem_sep void remove concode_elem_sep void setDataService
target: MotechUser function ( String arg0 ) { return null == arg0 ? null : dataService . findByEmail ( arg0 ) ; }