Add support for amazon-bedrock-guardrailConfig

[supreetkt]

Add support for amazon-bedrock-guardrailConfig

• Adds guardrailConfig to hold values for this field within the guardrails property for Bedrock classes and this is passed to the bedrock invoke model calls via the amazon-bedrock-guardrailConfig field in the body. amazon-bedrock-guardrailConfig allows adding a tagSuffix [documentation] and different streaming response behaviors [documentation]
• Also cleaned up some documentation, error messages and tests
• Added a conftest file for common fixtures that can be used across tests

Closes: #52

[supreetkt]

@3coins: can we trigger the workflow checks on this PR? Thanks.

[nbaillie]

is there any idea when this might be released?

[supreetkt]

is there any idea when this might be released?

I haven't heard back from @3coins yet, but hopefully soon!

[paulonasc]

@3coins any updates on this PR? I need this feature ASAP. Please let me know if I can help :)

[3coins]

@supreetkt Can you fix conflicts and rebase from main.

[fpSpindola]

hey guys! Is there any chance this is going to be released soon?

[john-mihailescu]

Does this actually work with streaming? I'm finding that even with these changes, whether I use asynchronous or synchronous streaming with the Anthropic bedrock models in langchain, as soon as I include guardrails I get the results in a single chunk rather than streaming out the response in smaller chunks gradually.

[KimYongKuk]

I really hope this gets implemented soon.

[supreetkt]

@supreetkt Can you fix conflicts and rebase from main.

yes, I can resolve the conflicts. Missed notifications on this.

[jarvis0]

Is there any idea when this might be released?