CredentialMeta
vct_valuesstring[]
For SD-JWT VC: allowed vct values
Example: 
["https://credentials.example.com/identity_credential"]type_valuesarray[]
For W3C VC: allowed type values
Example: 
[["VerifiableCredential","IDCredential"]]doctype_valuestring
For mdoc: document type value
Example: 
org.iso.18013.5.1.mDLCredentialMeta
{
  "vct_values": [
    "https://credentials.example.com/identity_credential"
  ],
  "type_values": [
    [
      "VerifiableCredential",
      "IDCredential"
    ]
  ],
  "doctype_value": "org.iso.18013.5.1.mDL"
}