draft(CDPPS-934): swap api chain expansion (python)

[sabrinahirani]

Description

Tests

Checklist

A couple of things to include in your PR for completeness:

• Updated the typescript README if relevant
• Updated the python README if relevant
• Added a changelog entry
• Added e2e tests if introducing new functionality

[cb-heimdall]

🟡 Heimdall Review Status

Requirement	Status	More Info
Reviews	🟡 0/1	Denominator calculation Show calculation 1 if user is bot 0 1 if user is external 0 2 if repo is sensitive 0 From .codeflow.yml 1 Additional review requirements Show calculation Max 0 0 From CODEOWNERS 0 Global minimum 0 Max 1 1 1 if commit is unverified 0 Sum 1

[linear]

CDPPS-934 Code Examples for Chain Expansion (python)

[cb-heimdall]

Review Error for Imebeez @ 2025-12-29 19:32:02 UTC
User failed mfa authentication, either user does not exist or public email is not set on your github profile. \ see go/mfa-help