can send html format email

pojo/MailPojo.py

@@ -0,0 +1,14 @@
+class MailPojo:
+    email: str
+
+    def __init__(self, email: str):
+        self.email = email
+
+    @staticmethod
+    def from_firestore_dict(source):
+        email = source['email']
+        result = MailPojo(email=email)
+        return result
+
+    def __repr__(self):
+        return "email = " + self.email