docstr: As we know: `import a [as b]`.
docstr_tok: ["As","we","know",":","`","import","a","[","as","b","]","`","."]
code: def visit_Import(self, node, try_=False):
      """As we know: `import a [as b]`."""
      lineno = node.lineno + self._lineno
      for alias in node.names:
          self._modules.add(alias.name, self._fpath, lineno)
          if try_:
              self._try_imports.add(alias.name)
  
imports: from __future__ import print_function, division, absolute_import
  import json
  import os
  import sys
  import six
  import fnmatch
  import importlib
  import ast
  import doctest
  import collections
  import functools
  from pathlib2 import Path
  from .utils import parse_git_config
  from .modules import ImportedModules
label_desc: Use image node_id 2 for calling the ImportChecker obj's underlying member method code with example usage: obj.visit_Import(node, try_) without return types