Imports
- github.com/aws/aws-sdk-go/aws
- github.com/aws/aws-sdk-go/aws/session
- github.com/aws/aws-sdk-go/service/s3
- github.com/aws/aws-sdk-go/service/s3/s3manager
- github.com/eawsy/aws-lambda-go-core/service/lambda/runtime
- github.com/mitchellh/mapstructure
- github.com/nfnt/resize