When the odatagen is used to generate classes for services that has complex type inside the FunctionImport section there is an issue in the class header - missing namespace prefix in the h and m files
in the class that inherited from the ObjectContext is generated like

• (ApplyDecisionOutput ) ApplyDecisionWithworkitem_id:(NSString )workitem_id dec_key:(NSString )dec_key comments:(NSString )comments;
   
  would expected to:
• (WFODCPROCESSING_ApplyDecisionOutput ) ApplyDecisionWithworkitem_id:(NSString )workitem_id dec_key:(NSString )dec_key comments:(NSString )comments;