Unknown function 'jwt_encode'

[ves_qad_com]

I try to create jwt token using jwt_encode($algorithm, $payload, $key, $header_fields) (from https://docs.rightscale.com/ss/reference/rcl/v2/ss_RCL_functions.html#miscellaneous-jwt_encode)
But when I upload CAT file to Designer I got - Unknown function 'jwt_encode' at line 16, column 16 Use valid Cloud Application Template syntax

My code is similar to:

$payload = {"target_audience": $some_endpoint, "iss": "email", "sub": "email", "aud": "url", "exp": 1644320037, "iat": 1644320037}

$key = "key"

$header = {"alg": "RS256", "typ": "JWT"}

$jwt = jwt_encode("RS256", $payload, $key, $header)

COULD YOU HELP ME WITH THAT?
Thank you, Vasyl Stavinskyi

[douglaswth]

I'd have to see more of the file, but I suspect the problem may be that your code is outside of an  RCL definition and therefore cannot be parsed as RCL code. An RCL definition looks like:

define do_something($some_endpoint)
  $payload = {"target_audience": $some_endpoint, "iss": "email", "sub": "email", "aud": "url", "exp": 1644320037, "iat": 1644320037}
  $key = "key"
  $header = {"alg": "RS256", "typ": "JWT"}

  $jwt = jwt_encode("RS256", $payload, $key, $header)
  ...
end

[ves_qad_com]

Actually I have the same separated method in my CAT file