struct StructPrimitives {
  uint64: UInt64
  uint32: UInt32
  uint16: UInt16
  uint8: UInt8
  int64: Int64
  int32: Int32
  int16: Int16
  int8: Int8
  float64: Float64
  float32: Float32
  bool: Bool
  string: String
  blob: Blob
  value: Value
}