extraSteps: BuildSteps.() -> Unit = {}, // the steps after runner steps
    preSteps: BuildSteps.() -> Unit = {}, // the steps before runner steps
) {
    buildType.applyDefaultSettings(os, timeout = timeout, buildJvm = buildJvm, arch = arch)

    buildType.steps {
        preSteps()
    }

    buildType.killProcessStep(KILL_LEAKED_PROCESSES_FROM_PREVIOUS_BUILDS, os, arch)

{* ../../docs_src/server_sent_events/tutorial005_py310.py hl[14] *}

## Détails techniques { #technical-details }

FastAPI met en œuvre certaines bonnes pratiques SSE prêtes à l’emploi.