code: def test_import_from(self):
      source = "from a import b"
  
      pruned = "from a import b"
      self.assertPruned(
          source,
          pruned,
          symbols=[
              "a",
          ],
      )
  
      pruned = ""
      self.assertPruned(
          source,
          pruned,
          symbols=[
              "b",
          ],
      )
  
imports: from __future__ import print_function
  from __future__ import division
  from __future__ import absolute_import
  from ...asttools.tests import AllTypesTested, assert_ast_eq
  import unittest
  from ...asttools.mutators.prune_mutator import PruneVisitor
  import ast
  from ...testing import py2only
label_desc: Use image node_id 13 for calling the TestInclusive obj's underlying member method code with example usage: obj.test_import_from() without return types