this definition is too long. Let's assign `nil` as default and then replace that with the actual default string:

```ruby
def with_example_table(definition = nil, &block)
  definition ||= <<-SQL
    `id` int(11) auto_increment PRIMARY KEY, 
    `number` integer, 
    `data` varchar(255)'
  SQL
  super(@conn, 'ex', definition, &block)
end
```