def execution(reload=false)

      exid = @values[:exid]; return nil unless exid

      @flor_model_cache_execution = nil if reload

      @flor_model_cache_execution ||= unit.executions[exid: exid]
    end
def execution(reload=false)

      exid = @values[:exid]; return nil unless exid

      @flor_model_cache_execution = nil if reload

      @flor_model_cache_execution ||= unit.executions[exid: exid]
    end
Return a Flor::Execution instance linked to this model