### Classes
| Class | Description |
| :- | :- |
| [`IContextManager`](/cad/python-net/aspose.cad.fileformats.u3d.bitstream/icontextmanager) | IContextManager.cs 
<br/>
<br/>This file defines the IContextManager interface. 
<br/>IContextManager is used to access the static and dynamic contexts used 
<br/>for the reading and writing of compressed data. |