inputs:
  echo-bla:
    description: 'echo bla-bla-bla if not empty'
    required: true
runs:
  using: "composite"
  steps:
    - run: echo "start"
      shell: bash
    - run: echo "bla bla bla"
      shell: bash
      if: ${{ inputs.echo-bla }}
    - run: echo "stop"
      shell: bash