See documentation here

use-extension:
  "@microsoft.azure/autorest.modeler": "2.3.45" # keep in sync with package.json's dev dependency in order to have meaningful tests

pipeline:
    cli/imodeler1:
        input: openapi-document/identity
        output-artifact: code-model-v1
        scope: cli
    cli/commonmarker:
        input: imodeler1
        output-artifact: code-model-v1
    cli/cm/transform:
        input: commonmarker
        output-artifact: code-model-v1
    cli/cm/emitter:
        input: transform
        scope: scope-cm/emitter
    cli/generate:
        plugin: cli
        input: cm/transform
        output-artifact: source-file-cli
    cli/transform:
        input: generate
        output-artifact: source-file-cli
        scope: scope-transform-string
    cli/emitter:
        input: transform
        scope: scope-cli/emitter

scope-cli/emitter:
  input-artifact: source-file-cli
  output-uri-expr: $key

output-artifact:
- source-file-cli

#``` yaml #use-extension:

"cli": "$(this-folder)"

#```