public static <T> ConductorWorkflow<T> fromWorkflowDef(WorkflowDef def) {
        ConductorWorkflow<T> workflow = new ConductorWorkflow<>(null);
        fromWorkflowDef(workflow, def);
        return workflow;
    }
Generate ConductorWorkflow based on the workflow metadata definition

@param def
@return
java-sdk/src/main/java/com/netflix/conductor/sdk/workflow/def/ConductorWorkflow.java