Custom module send email with custom language

I made a custom module that send an email to my customers. app/code/Local/CustomEmail/registration.php <?php \Magento\Framework\Component\ComponentRegistrar::register( \Magento\Framework\Component\ComponentRegistrar::MODULE, ‘Local_CustomEmail’, __DIR__ ); app/code/Local/CustomEmail/etc/module.xml <?xml version=”1.0″?> <config xmlns:xsi=”http://www.w3.org/2001/XMLSchema-instance” xsi:noNamespaceSchemaLocation=”urn:magento:framework:Module/etc/module.xsd”> <module name=”Local_CustomEmail” setup_version=”1.0.0″> </module> </config> app/code/Local/CustomEmail/etc/email_templates.xml <?xml version=”1.0″?> <config xmlns:xsi=”http://www.w3.org/2001/XMLSchema-instance” xsi:noNamespaceSchemaLocation=”urn:magento:module:Magento_Email:etc/email_templates.xsd”> <template id=”myemail_email_template” label=”My Label” file=”custom_email.html” type=”html” module=”Local_CustomEmail” area=”frontend”/> </config> app/code/Local/CustomEmail/view/frontend/email/custom_email.html These emails should be sent by an external script…