Hi Ayelen,
If
 you have already created a custom module using Odoo Studio and you want
 to incorporate it into your source code, you need to export your Studio
 custom module and add it to your custom source code. When you export 
your module, it will be stored as a zip compressed file on your device. 
You will then need to extract the zip file and merge its contents into 
your source code.
For detailed instructions on how to export your Studio custom module, you can refer to the following link:
Export and Import of Modules in Odoo Studio
Follow
 the steps outlined in the provided link to export your Studio custom 
module successfully. Once exported, you can proceed to integrate it into
 your custom source code by merging the extracted files appropriately
Hope it helps