$ mkdir ~/helloaws
$ cd ~/helloaws
$ go mod init helloaws

$ go get github.com/aws/aws-sdk-go-v2/aws
$ go get github.com/aws/aws-sdk-go-v2/config
$ go get github.com/aws/aws-sdk-go-v2/service/dynamodb

package main

import (
    "context"
    "fmt"
    "log"

    "github.com/aws/aws-sdk-go-v2/aws"
    "github.com/aws/aws-sdk-go-v2/config"
    "github.com/aws/aws-sdk-go-v2/service/dynamodb"
)

func main() {
    // Using the SDK's default configuration, loading additional config
    // and credentials values from the environment variables, shared
    // credentials, and shared configuration files
    cfg, err := config.LoadDefaultConfig(context.TODO(), config.WithRegion("us-west-2"))
    if err != nil {
        log.Fatalf("unable to load SDK config, %v", err)
    }

    // Using the Config value, create the DynamoDB client
    svc := dynamodb.NewFromConfig(cfg)

    // Build the request with its input parameters
    resp, err := svc.ListTables(context.TODO(), &dynamodb.ListTablesInput{
        Limit: aws.Int32(5),
    })
    if err != nil {
        log.Fatalf("failed to list tables, %v", err)
    }

    fmt.Println("Tables:")
    for _, tableName := range resp.TableNames {
        fmt.Println(tableName)
    }
}

$ go run .
Table:
tableOne
tableTwo