How to make a bulk call with multiple queries?

[anothermh]

The example for queries only shows a single query being submitted. How do you run multiple queries in one bulk call? When I follow the example in the README it runs immediately and synchronously returns the values for only the one call.

bulk = SalesforceBulkApi::Api.new(restforce_client)
response = bulk.query('Contact', "SELECT Id, AccountId FROM Contact WHERE Email = '[email protected]'")

response['batches'][0]['response'] returns:

[
    [0] {
         "xsi:type" => "sObject",
             "type" => [
            [0] "Contact"
        ],
               "Id" => [
            [0] "00336000004AVvHAAW",
            [1] "00336000004AVvHAAW"
        ],
        "AccountId" => [
            [0] "001360000027qGJAAY"
        ]
    }
]

What I would like to do is something like the example below, but it's unclear how:

array = []
array << "SELECT Id, AccountId FROM Contact WHERE Email = '[email protected]'"
array << "SELECT Id, AccountId FROM Contact WHERE Email = '[email protected]'"
bulk.query('Contact', array)

Thanks!