How to open server bash inside a local shell script

sshbash-inside-local-shell-script.sh

#!/bin/bash
var1="important-value"
echo "SEVER BASH - stats here"

ssh -i ./key.pem user@example.com <<-SSHBASH
  echo "Successfully connected to example.com"

  ls -l ./public_html/index.html

  echo "Echo Var1 Value: $var1"
SSHBASH

echo "Successfully disconnected from example.com"