def by_application_template_id(self,application_template_id: str) -> ApplicationTemplateItemRequestBuilder:
        """
        Provides operations to manage the collection of applicationTemplate entities.
        param application_template_id: The unique identifier of applicationTemplate
        Returns: ApplicationTemplateItemRequestBuilder
        """
        if application_template_id is None:
            raise TypeError("application_template_id cannot be null.")
        from .item.application_template_item_request_builder import ApplicationTemplateItemRequestBuilder

        url_tpl_params = get_path_parameters(self.path_parameters)
        url_tpl_params["applicationTemplate%2Did"] = application_template_id
        return ApplicationTemplateItemRequestBuilder(self.request_adapter, url_tpl_params)

        Provides operations to manage the collection of applicationTemplate entities.
        param application_template_id: The unique identifier of applicationTemplate
        Returns: ApplicationTemplateItemRequestBuilder
        
msgraph/generated/application_templates/application_templates_request_builder.py