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title: danog\MadelineProto\Db\DbPropertiesFactory: This factory class initializes the correct database backend for MadelineProto.
description: 

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# `danog\MadelineProto\Db\DbPropertiesFactory`
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> Author: Daniil Gentili <daniil@daniil.it>  
  

This factory class initializes the correct database backend for MadelineProto.  




## Constants
* `danog\MadelineProto\Db\DbPropertiesFactory::TYPE_ARRAY`: Indicates a simple K-V array stored in a database backend.
  
  Values can be objects or other arrays, but when lots of nesting is required, it's best to split the array into multiple arrays.

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