🌿 Fern Regeneration -- January 20, 2026

[fern-api]

This PR regenerates code to match the latest API Definition.

[greptile-apps]

Greptile Overview

Greptile Summary

This PR is an automated SDK regeneration from Fern that updates the SDK from version 0.1.16 to 0.1.17. The changes primarily improve Pydantic field aliasing and serialization handling.

Key Changes:

• Enhanced pydantic_utilities.py with improved alias handling logic that distinguishes between Pydantic aliases and FieldMetadata annotations
• Added field name coercion validators for both Pydantic v1 and v2 to accept Python field names as input while properly handling alias collisions
• Updated jsonable_encoder.py to handle Ellipsis (...) as a sentinel value for OMIT fields in serialization
• Added explicit pydantic.Field(alias=...) declarations across all type files alongside existing FieldMetadata annotations
• Updated dependencies: certifi (2025.11.12 → 2026.1.4) and tomli (2.3.0 → 2.4.0)

The changes are consistent with automated code generation patterns and improve the SDK's handling of field aliasing and optional value serialization.

Confidence Score: 5/5

• This PR is safe to merge with minimal risk
• This is an automated SDK regeneration with consistent, well-structured changes across all files. The core improvements to alias handling and serialization are additive and defensive (preventing ambiguous keys, properly handling OMIT values). No security concerns, permissions issues, or unsafe logging detected. All changes follow expected patterns for generated SDK code.
• No files require special attention