code: def env():
      return Environment(
          loader=DictLoader(
              {
                  "layout": LAYOUTTEMPLATE,
                  "level1": LEVEL1TEMPLATE,
                  "level2": LEVEL2TEMPLATE,
                  "level3": LEVEL3TEMPLATE,
                  "level4": LEVEL4TEMPLATE,
                  "working": WORKINGTEMPLATE,
                  "doublee": DOUBLEEXTENDS,
              }
          ),
          trim_blocks=True,
      )
  
imports: import pytest
  from jinja2 import DictLoader
  from jinja2 import Environment
  from jinja2 import TemplateRuntimeError
  from jinja2 import TemplateSyntaxError
label_desc: Use image node_id 1 for calling a global function with example usage: env() and returns: Environment