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

file:./
               state = STATIC
          created by   root:
            supplies   file:plan.py
            supplies   file:work.py
            supplies   file:work_inp.json
            supplies   file:work_out.json
            supplies   step:runpy ./plan.py
            supplies   step:runpy ./work.py --inp=work_inp.json --out=work_out.json --amend-out
            supplies   step:runsh cat work_out.json

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:work.py
             creates   file:work_inp.json
             creates   step:runpy ./work.py --inp=work_inp.json --out=work_out.json --amend-out
             creates   step:runsh cat work_out.json
            supplies   file:work_inp.json [amended]

file:work.py
               state = STATIC
          created by   step:runpy ./plan.py
            consumes   file:./
            supplies   step:runpy ./work.py --inp=work_inp.json --out=work_out.json --amend-out

file:work_inp.json
               state = BUILT
          created by   step:runpy ./plan.py
            consumes   file:./
            consumes   step:runpy ./plan.py
            supplies   step:runpy ./work.py --inp=work_inp.json --out=work_out.json --amend-out

step:runpy ./work.py --inp=work_inp.json --out=work_out.json --amend-out
               state = SUCCEEDED
             env_var = STEPUP_PATH_FILTER [amended]
          created by   step:runpy ./plan.py
            consumes   file:./
            consumes   file:work.py
            consumes   file:work_inp.json
             creates   file:work_out.json
            supplies   file:work_out.json [amended]

step:runsh cat work_out.json
               state = SUCCEEDED
          created by   step:runpy ./plan.py
            consumes   file:./
            consumes   file:work_out.json

file:work_out.json
               state = BUILT
          created by   step:runpy ./work.py --inp=work_inp.json --out=work_out.json --amend-out
            consumes   file:./
            consumes   step:runpy ./work.py --inp=work_inp.json --out=work_out.json --amend-out
            supplies   step:runsh cat work_out.json
