Data transformation (marshalling) and encoding helpers. Provides data transformation and encoding utility functions. Return [PoolByteArray] of a given base64 encoded String. Return utf8 String of a given base64 encoded String. Return [Variant] of a given base64 encoded String. Return base64 encoded String of a given [PoolByteArray]. Return base64 encoded String of a given utf8 String. Return base64 encoded String of a given [Variant].