def get_all_collections()
      response = self.get('collections').body
      parsed = JSON.parse(response)
      all_collections = []
      parsed.each do |item_hash|
        all_collections.push OmekaClient::OmekaCollection.new(self, item_hash)
      end
      return all_collections
    end
def get_all_collections()
      response = self.get('collections').body
      parsed = JSON.parse(response)
      all_collections = []
      parsed.each do |item_hash|
        all_collections.push OmekaClient::OmekaCollection.new(self, item_hash)
      end
      return all_collections
    end
Get a OmekaCollection class representation of an Omeka collection
 @param  id  [Integer] The ID of the collection to return. No value gets
 an array of all the items.
 @return  [Array] An OmekaCollection object
 @since 1.0.0