[Feature Request] Multi-Value Headers and Query String Parameters

[charsleysa]

Description:
API Gateway has recently (Oct 4th post in AWS What's New) released support for multi-value headers and query string parameters. It would be awesome if SAM CLI could support this too.

Here's the relevant doc https://docs.aws.amazon.com/apigateway/latest/developerguide/set-up-lambda-proxy-integrations.html#apigateway-multivalue-headers-and-parameters

[jfuss]

@charsleysa Thanks for the request. @medinarrior has already got a PR out for it :)

Updating labels.

[lkonya]

@jfuss Hi! Any update on this one?

[jasonrberk]

Status? I need query params in my Sam template