type Block @entity {
  id: ID!
  number: BigInt!
  timestamp: BigInt!
  parentHash: String
  author: String
  difficulty: BigInt
  totalDifficulty: BigInt
  gasUsed: BigInt
  gasLimit: BigInt
  receiptsRoot: String
  transactionsRoot: String
  stateRoot: String
  size: BigInt
  unclesHash: String
}