/tasks appears to be a legacy endpoint which requires limit be specified if the number of tasks returned would require pagination:

• https://developers.asana.com/docs/get-multiple-tasks
• https://developers.asana.com/docs/pagination

Unfortunately, 'limit' is not sent in automatically in the Ruby client library, nor is it allowed to be sent in by the client library user. Arguably it should be a keyword argument that defaults to 20 and can be overridden.

• https://github.com/Asana/ruby-asana/blob/master/lib/asana/resources/gen/tasks_base.rb#L198-L202

As a result, in Ruby, client.tasks.get_tasks() cannot be used when it would return a great number of items.

In addition, the documentation is wrong, as it suggests you can pass in 'limit' as part of the options - this has no effect, as it gets translated to 'opt_limit', which is not recognized by the API.