Allow default values on asset-type pipeline component inputs in load_component

[Copilot]

load_component rejected pipeline component YAMLs that define default for asset-type inputs (uri_file, uri_folder, mltable, mlflow_model, custom_model), despite support in the public CLI v2 schema/backend. This PR aligns SDK deserialization/validation behavior with that schema.

• Input combination validation

  • Updated IOConstants.INPUT_TYPE_COMBINATION to allow default for asset input types:
    • uri_file, uri_folder, mltable, mlflow_model, custom_model

• YAML schema deserialization

  • Added default fields to asset input schemas so YAML default: is materialized instead of rejected/dropped:
    • DataInputSchema
    • ModelInputSchema
    • MLTableInputSchema

• Input default semantics for asset types

  • Relaxed Input._update_default for non-primitive asset inputs:
    • accepts str default (e.g., azureml:/URL/path)
    • accepts Input default
  • Preserves prior failure behavior for unsupported non-primitive defaults and non-asset types.

• Coverage for pipeline component behavior

  • Added fixture YAML with asset-type defaults.
  • Extended unit tests to cover:
    • load from YAML
    • dict/REST round-trip preservation of defaults
    • inline constructor behavior
    • invalid default-type error paths

• Changelog

  • Added bug-fix note in sdk/ml/azure-ai-ml/CHANGELOG.md.

inputs:
  spaceship_data:
    type: uri_file
    mode: ro_mount
    default: azureml:test_dataset:1

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• centralus-2.in.applicationinsights.azure.com
  • Triggering command: /home/REDACTED/bin/azsdk /home/REDACTED/bin/azsdk ingest-telemetry --client-type copilot-cli --event-type skill_invocation --session-id a6f1498e-00c2-474f-9319-05595f7709d8 --skill-name find-package-skill (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

Original prompt

Create a new pull request in Azure/azure-sdk-for-python that reproduces the changes from existing PR #47020 (Allow default values on asset-type inputs in pipeline component YAML), but from a new branch based on main and under the user's branch namespace instead of the Copilot-created PR.

Requirements:

• Base the work on the main branch.
• Recreate the code changes from PR Allow default values on asset-type inputs in pipeline component YAML #47020 as closely as possible.
• Use a new branch under the user's requested namespace, beginning with v-cchakradha/.
• Open a new PR in Azure/azure-sdk-for-python with an appropriate title and description.
• The goal is to replace the existing Copilot-authored PR with a user-owned equivalent PR.

If needed, inspect PR #47020 and its changed files/commits to replicate the patch accurately.

The following is the prior conversation context from the user's chat exploration (may be truncated):

User: for this pr can you give create a pr form main and instead of copilot my name use v-cchakradha/....
@Azure/azure-sdk-for-python/pull/47020

Assistant: I can help, but I need one clarification first: do you want me to open a new PR from main that duplicates PR #47020 under your account/branch, or do you want the existing PR #47020 edited so the author/branch reflects v-cchakradha/...?

Important constraint: I can’t change the author of an existing PR. On GitHub, PR authorship is tied to the account/branch that opened it. If you want it under your name, the usual path is:

1. create a new branch from main,
2. apply the same changes,
3. push that branch under your fork or branch namespace,
4. open a new PR as you.

If your intent is “create a new PR equivalent to #47020 in Azure/azure-sdk-for-python from main, using a branch like v-cchakradha/...”, I can do that — but I need you to explicitly confirm that’s what you want. Also, if you want a specific branch name, tell me the exact v-cchakradha/... branch name to use.I can do that, but I need one exact detail first: the full branch name you want, e.g. v-cchakradha/fix-default-asset-inputs.

Also, one limitation: I cannot change the author of existing PR #47020. If you want it under your name instead of Copilot, the right approach is to create a new PR from main with the same changes using your branch.

Reply with either:

• Use branch v-cchakradha/<name>
  or
• Pick a branch name for me

and I’ll proceed to create the new PR in Azure/azure-sdk-for-python.

User: yes create new branch

Assistant: We’re waiting for your response to the confirmation dialog before I can continue creating the new branch and PR.

This pull request was created from Copilot chat.