createMeta abstract method
Creates custom entity metadata with specified parameters.
Builds Meta from explicit components (type, public key, seed, fingerprint) rather than generating it from a private key.
@param type - Metadata type (e.g., "user", "group")
@param pKey - Public verification key (core cryptographic identity)
@param seed - Optional seed value used to generate the fingerprint
@param fingerprint - Optional cryptographic fingerprint of the metadata
@return Custom Meta instance
Implementation
Meta createMeta(String type, VerifyKey pKey, {
String? seed,
TransportableData? fingerprint
});