public static GraphQLScalarType addressScalar() {
    return GraphQLScalarType.newScalar()
        .name("Address")
        .description("Address scalar")
        .coercing(ADDRESS_COERCING)
        .build();
  }
Creates a new GraphQLScalarType object for an Address.

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

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