public static GraphQLScalarType bytesScalar() {
    return GraphQLScalarType.newScalar()
        .name("Bytes")
        .description("A Bytes scalar")
        .coercing(BYTES_COERCING)
        .build();
  }
Creates a new GraphQLScalarType object for Bytes.

<p>The object is configured with a specific Coercing implementation that defines how the Bytes
type is serialized, deserialized and validated.

@return a GraphQLScalarType object for Bytes.
ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/graphql/internal/Scalars.java