- (AlfrescoRequest *)retrieveDefinitionForTask:(AlfrescoWorkflowTask
        *)task completionBlock:(AlfrescoTaskTypeDefinitionCompletionBlock)completionBlock;
      - Returns the type definition for the given workflow task, the returned definition will also
      include all properties from all applied aspects.
    Parameters
- (AlfrescoWorkflowTask *) task
 - Task to retrieve the definition for.
 - (AlfrescoTaskTypeDefinitionCompletionBlock)block
 - The block that is called on completion of the operation. The block has the format typedef void (^AlfrescoTaskTypeDefinitonCompletionBlock)(AlfrescoTaskTypeDefinition *typeDefinition, NSError *error);.
 
Returns
(AlfrescoRequest *)
Example