Imports bosun.org/_third_party/github.com/aws/aws-sdk-go/aws bosun.org/_third_party/github.com/aws/aws-sdk-go/aws/credentials bosun.org/_third_party/github.com/aws/aws-sdk-go/aws/request bosun.org/_third_party/github.com/aws/aws-sdk-go/internal/protocol/rest Standard library imports crypto/sha256 crypto/hmac encoding/hex fmt io net/http net/url sort strconv strings time