Add support for config resolver#738
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# Conflicts: # packages/smithy-aws-core/src/smithy_aws_core/config/exceptions.py
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Thanks Ujjwal. Overall, everything seems functional after testing with different direct, env var, and config file setups.
I let some comments calling out some gaps and bugs in the implementation. Let me know if you have any questions. I'll continue to think about if this is the optimal interface we want to expose.
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Description of changes:
This change implements the async config resolution pipeline with
AsyncAwsConfigusing aresolve()classmethod as the only construction path. It addsSharedConfigContextfor holding env vars and memoized config file data,FieldSpecfor per-field resolution metadata, and provenance tracking viaConfigSource. Resolvers for region andretry_strategy_optionsare included along with validators for both fields.Testing:
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