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]
             creator   root:
              source   file:plan.py
             product   file:template.md
             product   file:variables.py
             product   step:sc-render-jinja template.md variables.py rendered.md

file:template.md
               state = CONFIRMED
             creator   step:./plan.py
                sink   step:sc-render-jinja template.md variables.py rendered.md

file:variables.py
               state = CONFIRMED
             creator   step:./plan.py
                sink   step:sc-render-jinja template.md variables.py rendered.md

step:sc-render-jinja template.md variables.py rendered.md
               state = SUCCEEDED
                need = DEFAULT
           using_env = ENV_VAR_TEST_STEPUP_RENDER [dynamic]
                     = STEPUP_PATH_FILTER [dynamic]
             creator   step:./plan.py
              source   file:template.md
              source   file:variables.py
             product   file:rendered.md
                sink   file:rendered.md

file:rendered.md
               state = BUILT
             creator   step:sc-render-jinja template.md variables.py rendered.md
              source   step:sc-render-jinja template.md variables.py rendered.md
