Jacob Valdez

Added facade classes: LLMFacade, ChatModelFacade

1

feature: #4251 Note: still need to write tests

Added MultiAttemptRetryWithErrorOutputParser

1

feature: #4259 Note: still need to add tests

Added ItemParsedListOutputParser

1

feature: #4258 Note: still need to write tests

Feature/4257 enum output parser

1

Feature: #4257 Notes: Still need to add tests

Added ChoiceOutputParser

4

feature: #4256 Note: Still need to add tests

Added DatetimeOutputParser

1

feature: #4255 Note: Still need to add tests

Added RemoveQuotesOutputParser

1

feature: #4252 Still need to add tests.

Added ChainedOutputParser

2

feature: #4253 Note: Still need to add tests

Bug/4299 cant instantiate simplechatmodel subclass without defining agenerate

1

Fixes #4299

Can't instantiate abstract class <subclass of `SimpleChatModel`> with abstract method `_agenerate`

2

### System Info (not relevant) ``` $ uname -a Linux jacob-latitude5580 5.15.0-71-lowlatency #78-Ubuntu SMP PREEMPT Wed Apr 19 12:17:25 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux ``` ### Who can help?...