Kubeflow Pipelines Pipeline Specification

kfp-pipeline-spec defines the canonical data structures and protobuf messages for Kubeflow Pipelines (KFP) v2 pipeline specifications. It is a core component of the KFP SDK, providing the underlying schema for pipeline definitions compiled by `kfp` and executed on the KFP backend. The library is actively maintained, with releases frequently synchronised with the main KFP SDK, currently at version 2.16.0.