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

file:./
               state = STATIC
          created by   root:
            supplies   file:dst.pdf
            supplies   file:plan.py
            supplies   file:src.pdf
            supplies   step:nup-pdf src.pdf dst.pdf -p A4
            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:src.pdf
             creates   step:nup-pdf src.pdf dst.pdf -p A4

file:src.pdf
               state = STATIC
          created by   step:runpy ./plan.py
            consumes   file:./
            supplies   step:nup-pdf src.pdf dst.pdf -p A4

step:nup-pdf src.pdf dst.pdf -p A4
               state = SUCCEEDED
             env_var = REPREP_NUP_MARGIN [amended]
                     = REPREP_NUP_NCOL [amended]
                     = REPREP_NUP_NROW [amended]
          created by   step:runpy ./plan.py
            consumes   file:./
            consumes   file:src.pdf
             creates   file:dst.pdf
            supplies   file:dst.pdf

file:dst.pdf
               state = BUILT
          created by   step:nup-pdf src.pdf dst.pdf -p A4
            consumes   file:./
            consumes   step:nup-pdf src.pdf dst.pdf -p A4
