This type is used to mark function arguments.
NOTE: The main reason for this to exist (except the type-safety) is that the value is transparently serialized and deserialized as a base64-encoded string when serde is used (serde_json).
This type is used to mark function arguments.
NOTE: The main reason for this to exist (except the type-safety) is that the value is transparently serialized and deserialized as a base64-encoded string when serde is used (serde_json).