Describe the bug(问题描述)
运行run_dien.py时，报错ValueError: The name "seq_length" is used in 2 times in the model. All layer names should be unique.

To Reproduce(复现步骤)
Steps to reproduce the behavior:

1. 运行examples/run_dien.py
2. See error

Operating environment(运行环境):

• python version [3.7.4]
• tensorflow version [2.0.0]
• deepctr version [0.7.4]

Additional context
Add

Would love to have TypeScript type definitions so aes-js could be used in a strongly typed way in a TypeScript project. Thanks!

I believe that it is somewhat irresponsible to not mention Message Authentication. Otherwise, users will copy the insecure code in the README without realizing e.g. CBC without a MAC is trivially broken.

I have a couple of suggestions that might help people understand the security properties of this library, even if they don't know much about crypto.

• The subcrates are published on crates.io, but the subcrates don't include the warning of the top-level crate that there has been no formal security review.
• There is no mention of a common mistake made with stream ciphers: if you reuse the same

pairs=[{'ad': 'q_topic_1', 'pos_hist': 'm_interested_topics'},
{'ad': 'q_topic_2', 'pos_hist': 'm_interested_topics'},
{'ad': 'q_topic_3', 'pos_hist': 'm_interested_topics'},
{'ad': 'q_topic_4', 'pos_hist': 'm_interested_topics'},
{'ad': 'q_topic_5', 'pos_hist': 'm_interested_topics'}
],

Thank you very much for your work, I feel like it used to work, but as I enter my User Token in it, I get the response:

{u'message': u'(#100) Pages Public Content Access requires either app secret proof or an app token', u'code': 100, u'type': u'OAuthException', u'fbtrace_id': u'AuwdgxokRLwtt9dVKOsH06x'}

Well, when I plug in the App Token, the response follows:

{u'message': u"(