| crypto/sha256 | Package sha256 implements the SHA224 and SHA256 hash algorithms as defined in FIPS 180-4. |
| encoding/hex | Package hex implements hexadecimal encoding and decoding. |
| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| github.com/aws/aws-sdk-go-v2/aws | Package aws provides the core SDK's utilities and shared types. |
| github.com/aws/aws-sdk-go-v2/aws/signer/v4 | Package v4 implements the AWS signature version 4 algorithm (commonly known as SigV4). |
| github.com/aws/aws-sdk-go-v2/internal/awsutil | |
| github.com/aws/aws-sdk-go-v2/private/protocol | |
| github.com/aws/aws-sdk-go-v2/private/protocol/restjson | |
| io | Package io provides basic interfaces to I/O primitives. |
| reflect | Package reflect implements run-time reflection, allowing a program to manipulate objects with arbitrary types. |
| time | Package time provides functionality for measuring and displaying time. |