Build Job with Fail Status Pipeline

I’m working with Pipline (Groovy language) and I’m trying to Build a Job with Failure Status.
Any suggestions?

There is an error step which doesn’t require any node, so the minimal working Pipeline that will fail is simply:

error "I'm failing"

Thank you @PierreBtz,but in my case I want to build the job from groovy script and force it status to fail

Do you have an example of what you are trying to accomplish?