---
title: "Build specification"
sub_link: "builds/specification"
code_link: "https://github.com/polyaxon/cli/blob/master/cli/polyaxon/_flow/builds/__init__.py"
meta_title: "Polyaxon events specification - Polyaxon automation"
meta_description: "Events specification for subscribing operations to specific external triggers or internal conditions."
visibility: public
status: published
tags:
  - reference
  - polyaxon
  - polyflow
  - pipelines
  - mapping
  - parallel
sidebar: "automation"
---

<blockquote class="info">This feature is still in Beta and requires v1.9.2 or higher!</blockquote>

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