code: func Base64Sha256(str cty.Value) (cty.Value, error) {
  	return Base64Sha256Func.Call([]cty.Value{str})
  }
docs: // Base64Sha256 computes the SHA256 hash of a given string and encodes it with
  // Base64.
  //
  // The given string is first encoded as UTF-8 and then the SHA256 algorithm is applied
  // as defined in RFC 4634. The raw hash is then encoded with Base64 before returning.
  // Terraform uses the "standard" Base64 alphabet as defined in RFC 4648 section 4.