this is what my sample Yaml looks like I want to write python script to translate it into Dagster workflow

cwlVersion: v1.0
class: Workflow
inputs:
  Input1:
    type: File?
    extract: string
  Input2:
    type: File?
    extract: string
outputs:
  task3_output:
    type: File
    outputSource: task3/outfile
steps:
 task1:
   in:
     files:
       source: Input1
   out: [task1out]
 task2:
   in:
     files:
       source: Input2
   out: [task2out]
 task3:
    in:
      files:
        source: [task1out, task2out]
        linkMerge: merge_flattened
    out: [outfile]