Gstreamer Concat command line to code?

[killerrats]

do you have to link the elements a certain way? can i just take each of the
elements and connect them accordingly or no? I have converted command line
to code before but this one I wondered if it works differently.
gst-launch-1.0 -e concat name=c ! h264parse ! mp4mux name=mux ! filesink
location=*testing.mp4* concat name=c2 ! aacparse ! mux.audio_1 filesrc
location=*[1]* ! qtdemux name=dem1 ! queue ! c. dem1.audio_0 ! queue ! c2.
filesrc location=*[2]* ! qtdemux name=dem2 ! queue ! c. dem2.audio_0 ! queue
! c2. filesrc location=*[3]* ! qtdemux name=dem3 ! queue ! c. dem3.audio_0 !
queue ! c2. filesrc location=*[4]* ! qtdemux name=dem4 ! queue ! c.
dem4.audio_0 ! queue ! c2. 




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Gstreamer 1.14.4
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Windows
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