Panic

[shannona]

I managed to panic the CLI with the following command:

CREDENTIAL=`envelope subject type arid 4676635a6e6068c2ef3ffd8ff726dd401fd341036e920f136a1d8af5e829496d |
    envelope assertion add pred-obj known isA string "Certificate of Completion" |
    envelope assertion add pred-obj known issuer string "Example Electrical Engineering Board" |
    envelope assertion add pred-obj known controller string "Example Electrical Engineering Board" |
    envelope assertion add pred-obj string "firstName" string "James" |
    envelope assertion add pred-obj string "lastName" string "Maxwell" |
    envelope assertion add pred-obj string "issueDate" date "2020-01-01" |
    envelope assertion add pred-obj string "expirationDate" date "2028-01-01" |
    envelope assertion add pred-obj string "photo" string "This is James Maxwell's photo." |
    envelope assertion add pred-obj string "certificateNumber" string "123-456-789" |
    envelope assertion add pred-obj string "subject" string "RF and Microwave Engineering" |
    envelope assertion add pred-obj string "continuingEducationUnits" number 1.5 |
    envelope assertion add pred-obj string "professionalDevelopmentHours" number 15 |
    envelope assertion add pred-obj string "topics" cbor "82695375626a6563742031695375626a6563742032" |
    envelope subject type wrapped |
    envelope sign $BOARD_PRVKEY_BASE |
    envelope assertion add pred-obj known note string "Signed by Example Electrical Engineering Board"`

thread 'main' panicked at /Users/ShannonA/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/bc-envelope-cli-0.14.0/src/utils.rs:136:13:
not yet implemented
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
Error: No envelope provided

Obviously, the command was not right (that was sign instead of sign -s as I was trying to figure out the new way to do things), but it shouldn't panic.