Test

[senwu]

Description of the bug

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To Reproduce

Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Execute the code '...' If necessary, attach example data which can be used to replicate the issue.

Expected behavior

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Error Logs/Screenshots

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Environment (please complete the following information)

• OS: [e.g. Ubuntu 18.04]
• PostgreSQL Version: [e.g. 9.6]
• Poppler Utils Version: [e.g. 0.62.0]
• Fonduer Version: [e.g. 0.6.0]

Additional context

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