Add Marketo marketing automation doc (Python)

[jalemieux]

Summary

• Community-contributed doc for Adobe Marketo Engage REST API using Python requests
• Covers the full marketing automation surface: OAuth auth, lead CRUD, bulk import/export, static lists, campaigns, emails, forms, programs, smart lists, and custom objects
• Includes workspace/partition gotcha notes and rate limit guidance
• All code examples tested against a live Marketo instance (27 passing tests across 3 test suites)

Content

• content/marketo/docs/marketing-automation/python/DOC.md (992 lines)
• Source: community
• Validates cleanly with chub build --validate-only

Sections covered

1. Authentication (OAuth 2.0 client credentials with auto-refresh)
2. Lead operations (CRUD, describe, merge, delete)
3. Bulk operations (CSV import, export with polling)
4. Smart lists & static lists (with workspace/partition notes)
5. Campaigns (trigger, request, schedule)
6. Email & email templates
7. Forms
8. Programs & channels
9. Custom objects
10. Pagination & rate limits
11. Error handling (common error codes, retry patterns)
12. Complete end-to-end example

Test plan

• chub build content/ --validate-only passes (1554 docs, 0 warnings)
• OAuth authentication tested against live instance
• Lead CRUD (create, get, update, upsert, delete) verified
• Bulk import (CSV upload, poll, results) verified
• Bulk export (create, enqueue, poll, download) verified
• Static list add/membership/remove verified
• All asset APIs (emails, forms, programs, smart lists) verified with assertions

🤖 Generated with Claude Code