question: sets the value of the firstname property . concode_field_sep String lastName concode_elem_sep List<String> aliasName concode_elem_sep String militaryRank concode_elem_sep TimePeriod effectivePeriod concode_elem_sep String prefix concode_elem_sep String fullName concode_elem_sep String maidenName concode_elem_sep long serialVersionUID concode_elem_sep List<String> title concode_elem_sep String suffix concode_elem_sep String nameType concode_elem_sep String firstName concode_elem_sep List<String> familyName concode_elem_sep List<String> middleName concode_elem_sep List<String> salutation concode_elem_sep String preferredName concode_field_sep void setNameType concode_elem_sep String getPreferredName concode_elem_sep String getMilitaryRank concode_elem_sep void setEffectivePeriod concode_elem_sep String getPrefix concode_elem_sep void setPreferredName concode_elem_sep void setMaidenName concode_elem_sep List<String> getMiddleName concode_elem_sep void setMilitaryRank concode_elem_sep List<String> getAliasName concode_elem_sep String getLastName concode_elem_sep List<String> getSalutation concode_elem_sep void setLastName concode_elem_sep String getSuffix concode_elem_sep List<String> getTitle concode_elem_sep String getMaidenName concode_elem_sep String getNameType concode_elem_sep void setPrefix concode_elem_sep void setFullName concode_elem_sep void setSuffix concode_elem_sep List<String> getFamilyName concode_elem_sep TimePeriod getEffectivePeriod concode_elem_sep String getFullName concode_elem_sep String getFirstName
target: void function ( String arg0 ) { this . firstName = arg0 ; }