0007_vvv

    loading [Config]:  ./tests/modtests/0007/upconfig.yml
    Main config:
                 Version -> 1.0.0
                  RefDir -> ./tests/modtests/0007
                 WorkDir -> refdir
              AbsWorkDir -> /up_project/up/tests/modtests/0007
                TaskFile -> up.yml
                 Verbose -> vvv
              ModuleName -> self
               ShellType -> /bin/sh
           MaxCallLayers -> 8
                 Timeout -> 3600000
     MaxModuelCallLayers -> 256
               EntryTask -> Main
      ModRepoUsernameRef -> 
      ModRepoPasswordRef -> 
    work dir: /up_project/up/tests/modtests/0007
    -exec task: Main
    loading [Task]:  ./up.yml
    module: [self], instance id: [dev], exec profile: []
    profile -  envVars:
    
    (*core.Cache)({
    })
    
    Task1: [Main ==> Main: main entry ]
    -Step1: [
    note that the module dir is: hello-module, but in upconfig.yml you give the alias hello as module name
    ]
    self: final context exec vars:
    
    (*core.Cache)({
      "up_runtime_task_layer_number": 0
    })
    
     WARN: [config file does not exist] - [use builtin defaults]
    loading [Task]:  ./up.yml
    module: [hello], instance id: [nonamed], exec profile: []
     WARN: [*be aware*] - [both instance id and exec profile are not set]
    profile -  envVars:
    
    (*core.Cache)({
    })
    
    =>call module: [hello] task: [Say_world]
    Task2: [TODO: Main Caller Taskname ==> Say_world:  ]
    -Step1:
    hello: final context exec vars:
    
    (*core.Cache)({
      "up_runtime_task_layer_number": 0,
      "up_runtime_tasker_layer_number": 2
    })
    
    ~SubStep1: [print:  ]
     .... world from Say_world