code: def test_aws_template_fields():
      result = aws_template_fields()
      assert result == ("aws_conn_id", "region_name", "verify")
      assert (
          aws_template_fields() is result
      ), "aws_template_fields expect to return cached result"
  
      assert aws_template_fields("foo", "aws_conn_id", "bar") == (
          "aws_conn_id",
          "bar",
          "foo",
          "region_name",
          "verify",
      )
  
imports: from __future__ import annotations
  import pytest
  from airflow.providers.amazon.aws.utils.mixins import aws_template_fields
label_desc: Use image node_id 1 for calling a global function with example usage: test_aws_template_fields() without return types