root:
             creates   file:./
             creates   file:plan.py
             creates   step:runpy ./plan.py

file:./
               state = STATIC
          created by   root:
            supplies   file:copy.txt
            supplies   file:generate.py
            supplies   file:plan.py
            supplies   file:runout.txt
            supplies   step:copy runout.txt copy.txt
            supplies   step:runpy ./generate.py plan --optional
            supplies   step:runpy ./generate.py run
            supplies   step:runpy ./plan.py

file:plan.py
               state = STATIC
          created by   root:
            consumes   file:./
            supplies   step:runpy ./plan.py

step:runpy ./plan.py
               state = SUCCEEDED
             env_var = STEPUP_PATH_FILTER [amended]
          created by   root:
            consumes   file:./
            consumes   file:plan.py
             creates   file:generate.py
             creates   step:copy runout.txt copy.txt
             creates   step:runpy ./generate.py plan --optional

file:generate.py
               state = STATIC
          created by   step:runpy ./plan.py
            consumes   file:./
            supplies   step:runpy ./generate.py plan --optional
            supplies   step:runpy ./generate.py run

step:runpy ./generate.py plan --optional
               state = SUCCEEDED
             env_var = STEPUP_PATH_FILTER [amended]
          created by   step:runpy ./plan.py
            consumes   file:./
            consumes   file:generate.py
             creates   step:runpy ./generate.py run

step:runpy ./generate.py run
               state = SUCCEEDED
           mandatory = REQUIRED
             env_var = STEPUP_PATH_FILTER [amended]
          created by   step:runpy ./generate.py plan --optional
            consumes   file:./
            consumes   file:generate.py
             creates   file:runout.txt
            supplies   file:runout.txt

file:runout.txt
               state = BUILT
          created by   step:runpy ./generate.py run
            consumes   file:./
            consumes   step:runpy ./generate.py run
            supplies   step:copy runout.txt copy.txt

step:copy runout.txt copy.txt
               state = SUCCEEDED
          created by   step:runpy ./plan.py
            consumes   file:./
            consumes   file:runout.txt
             creates   file:copy.txt
            supplies   file:copy.txt

file:copy.txt
               state = BUILT
          created by   step:copy runout.txt copy.txt
            consumes   file:./
            consumes   step:copy runout.txt copy.txt
