当我从 tensorflow 导入包、类或方法时显示以下错误：
Cannot find reference 'keras' in '__init__.py' less... (Ctrl+F1)
Inspection info: This inspection detects names that should resolve but don't. Due to dynamic dispatch and duck typing, this is possible in a limited but useful number of cases. Top-level and class-level items are supported better than instance items.
使用 tensorflow 的预览版本时不会发生此问题。但是，程序仍然可以正常运行。我在“tensorflow.keras”中发现包“keras”，在编码界面中出现此错误，但是当我更改为导入“tensorflow.python.keras”时它无法运行。我该如何解决这个问题？
我正在使用 tensorflow 2.0.0alpha 和最新版本的 Pycharm
PyCharm 2018.3.5 (Professional Edition)
Build #PY-183.5912.18, built on February 26, 2019
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