def METHOD_NAME():
    dynamodb = _create_user_table()
    with pytest.raises(ClientError) as ex:
        dynamodb.batch_get_item(
            RequestItems={
                "users": {
                    "Keys": [
                        {"username": {"S": "user" + str(i)}} for i in range(0, 104)
                    ],
                    "ConsistentRead": True,
                }
            }
        )
    assert ex.value.response["Error"]["Code"] == "ValidationException"
    msg = ex.value.response["Error"]["Message"]
    assert (
        msg
        == "1 validation error detected: Value at 'requestItems.users.member.keys' failed to satisfy constraint: Member must have length less than or equal to 100"
    )