LiteLLM Minor Fixes and Improvements (08/06/2024) (#5567)

* fix(utils.py): return citations for perplexity streaming

Fixes https://github.com/BerriAI/litellm/issues/5535

* fix(anthropic/chat.py): support fallbacks for anthropic streaming (#5542)

* fix(anthropic/chat.py): support fallbacks for anthropic streaming

Fixes https://github.com/BerriAI/litellm/issues/5512

* fix(anthropic/chat.py): use module level http client if none given (prevents early client closure)

* fix: fix linting errors

* fix(http_handler.py): fix raise_for_status error handling

* test: retry flaky test

* fix otel type

* fix(bedrock/embed): fix error raising

* test(test_openai_batches_and_files.py): skip azure batches test (for now) quota exceeded

* fix(test_router.py): skip azure batch route test (for now) - hit batch quota limits

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Co-authored-by: Ishaan Jaff <ishaanjaffer0324@gmail.com>

* All `model_group_alias` should show up in `/models`, `/model/info` , `/model_group/info` (#5539)

* fix(router.py): support returning model_alias model names in `/v1/models`

* fix(proxy_server.py): support returning model alias'es on `/model/info`

* feat(router.py): support returning model group alias for `/model_group/info`

* fix(proxy_server.py): fix linting errors

* fix(proxy_server.py): fix linting errors

* build(model_prices_and_context_window.json): add amazon titan text premier pricing information

Closes https://github.com/BerriAI/litellm/issues/5560

* feat(litellm_logging.py): log standard logging response object for pass through endpoints. Allows bedrock /invoke agent calls to be correctly logged to langfuse + s3

* fix(success_handler.py): fix linting error

* fix(success_handler.py): fix linting errors

* fix(team_endpoints.py): Allows admin to update team member budgets

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Co-authored-by: Ishaan Jaff <ishaanjaffer0324@gmail.com>

.devcontainer/devcontainer.json

@@ -22,7 +22,8 @@
 				"ms-python.python",
 				"ms-python.vscode-pylance",
 				"GitHub.copilot",
-				"GitHub.copilot-chat"
+				"GitHub.copilot-chat",
+				"ms-python.autopep8"
 			]
 		}
 	},