Convert pptx to pdf on Python using SDK

I am trying to convert my pptx file to pdf with SDK on python django. Running on debug I look how I cant even enter into response. On the other hand It says my directory where I want to save pdf file converted doesnt exist, which is false because I made test and I cant save files there. This is my code, thank you in advance:

def generate_and_save_pptx(self):
# Ruta PPTX
pptx_template_path = ‘panel/templates/originals/Prueba.pptx’
# Ruta PDF final
pdf_filename = f’{self.client.name} - {self.type_submission.name}_tutorial.pdf’
pdf_path = submission_directory_path(self,pdf_filename)
api_instance = groupdocs_conversion_cloud.ConvertApi.from_keys(app_sid, app_key)

    # Configura la solicitud de conversión directa
    convert_request = groupdocs_conversion_cloud.ConvertDocumentDirectRequest(
        "pdf",
        pptx_template_path,  # Reemplaza con la ruta correcta a tu archivo
        None,
        None,
        None
    )

    try:
        # Realiza la conversión directa
        response = api_instance.convert_document_direct(convert_request)
        
        # Guarda el archivo convertido
        with open(pdf_path, "wb") as pdf_file:
            pdf_file.write(response)

        print(f"Archivo guardado en: {pdf_path}")

    except ApiException as e:
        print(f"Error durante la conversión: {e}")

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