val parse_session_reject_reason : string -> Full_admin_enums.fix_session_reject_reason optionval parse_business_reject_reason : string -> Full_admin_enums.fix_business_reject_reason optionval parse_app_reject_reason : string -> Full_admin_enums.fix_app_reject_reason optionval parse_GapFillFlag : string -> Full_admin_enums.fix_gapfillflag optionval parse_encryption_method : string -> Full_admin_enums.fix_encryption_method optionval parse_MsgDirection : string -> Full_admin_enums.fix_msgdirection option