@type t() :: %SBoM.CycloneDX.V16.LicenseChoice{
  __unknown_fields__: [Protobuf.unknown_field()],
  acknowledgement:
    SBoM.CycloneDX.V16.LicenseAcknowledgementEnumeration.t() | nil,
  bom_ref: String.t() | nil,
  choice:
    {:license, SBoM.CycloneDX.V16.License.t() | nil}
    | {:expression, String.t()}
    | nil
}