code: def test_parse_ellipsis(index, left, right):
      assert parse_ellipsis(index) == (left, right)
  
file_path: funsor/test/test_ops.py
imports: import weakref
  import pytest
  from funsor import ops
  from funsor.distribution import BACKEND_TO_DISTRIBUTIONS_BACKEND
  from funsor.ops.builtin import parse_ellipsis, parse_slice
  from funsor.testing import desugar_getitem
  from funsor.util import get_backend
label_desc: Use image node_id 4 for calling a global function with example usage: test_parse_ellipsis(index, left, right) without return types