TruLens Eval v0.20.3

What's changed

• Improved system prompt for ground truth evaluations by @daniel-huang-1230 in #782
• Added pydantic validation to feedback functions by @daniel-huang-1230 in #782
• Changed bedrock default model from titan-text-lite to titan-text-express by @joshreini1 in #788
• Documentation on optional packages to use with TruLens by @piotrm0 in #787

Examples

• Update langchain retrieval agents example to show validation of tool selection and tool input, work with openai > 1.0 by @piotrm0 @joshreini1 in #778
• Update AWS examples with changes to Bedrock API, other bug fixes by @joshreini1 in #788

Bug Fixes

• Removed optional imports from utility import (defined by init) by @piotrm0 in #786
• Fix missing f-strings in warning when app_id not yet present in the logging db by @andrewisplinghoff in #790

New contributors

• @andrewisplinghoff made their first contribution in #790