root:
             product   file:plan.py
             product   step:./plan.py

file:plan.py
               state = CONFIRMED
             creator   root:
                sink   step:./plan.py

step:./plan.py
               state = SUCCEEDED
                need = PLAN
           using_env = STEPUP_PATH_FILTER [dynamic]
           explained = yes
             creator   root:
              source   file:plan.py
             product   file:demovars.py
             product   file:printvars.py
             product   file:variables.json
             product   step:./demovars.py

file:demovars.py
               state = CONFIRMED
             creator   step:./plan.py
                sink   step:./demovars.py

file:printvars.py
               state = CONFIRMED
             creator   step:./plan.py
                sink   step:./printvars.py

file:variables.json
               state = CONFIRMED
             creator   step:./plan.py
                sink   step:./demovars.py

step:./demovars.py
               state = SUCCEEDED
                need = DEFAULT
           using_env = STEPUP_PATH_FILTER [dynamic]
           explained = yes
             creator   step:./plan.py
              source   file:demovars.py
              source   file:variables.json
             product   step:./printvars.py

step:./printvars.py
               state = SUCCEEDED
                need = DEFAULT
           using_env = ENV_VAR_TEST_STEPUP_AWDFTD
                     = ENV_VAR_TEST_STEPUP_DFTHYH
                     = STEPUP_PATH_FILTER [dynamic]
           explained = yes
             creator   step:./demovars.py
              source   file:printvars.py
             product   file:current_variables.txt
                sink   file:current_variables.txt

file:current_variables.txt
               state = BUILT
             creator   step:./printvars.py
              source   step:./printvars.py
