question: history metadata participant concode_field_sep String emailDescription concode_elem_sep Actor actor concode_elem_sep ExtraData extraData concode_elem_sep String activityDescriptionKey concode_elem_sep String emailDescriptionKey concode_elem_sep String descriptionKey concode_elem_sep String description concode_elem_sep Actor generator concode_elem_sep Actor cause concode_elem_sep String activityDescription concode_elem_sep String type concode_field_sep void setActivityDescription concode_elem_sep void setActor concode_elem_sep void setEmailDescriptionKey concode_elem_sep void setEmailDescription concode_elem_sep ExtraData getExtraData concode_elem_sep String getActivityDescriptionKey concode_elem_sep void setDescription concode_elem_sep void setCause concode_elem_sep void setType concode_elem_sep String getDescription concode_elem_sep Actor getCause concode_elem_sep String getEmailDescriptionKey concode_elem_sep String getActivityDescription concode_elem_sep void setActivityDescriptionKey concode_elem_sep Actor getGenerator concode_elem_sep String getType concode_elem_sep int hashCode concode_elem_sep boolean equals concode_elem_sep void setExtraData concode_elem_sep String getDescriptionKey concode_elem_sep String toString concode_elem_sep Actor getActor concode_elem_sep void setDescriptionKey concode_elem_sep String getEmailDescription
target: void function ( Actor arg0 ) { this . generator = arg0 ; }