Incorrect Protobuf classes are getting generated

I am trying out my first Protobuf sample code from the Protobuf documentation for Python. https://protobuf.dev/getting-started/pythontutorial/

This is my .proto file.

syntax = "proto2";

package tutorial;

message Person {
  optional string name = 1;
  optional int32 id = 2;
  optional string email = 3;

  enum PhoneType {
    PHONE_TYPE_UNSPECIFIED = 0;
    PHONE_TYPE_MOBILE = 1;
    PHONE_TYPE_HOME = 2;
    PHONE_TYPE_WORK = 3;
  }

  message PhoneNumber {
    optional string number = 1;
    optional PhoneType type = 2 [default = PHONE_TYPE_HOME];
  }

  repeated PhoneNumber phones = 4;
}

message AddressBook {
  repeated Person people = 1;
}

I navigated to the folder of the proto file in terminal and passed the below command.

protoc --python_out=../Generated addressbook.proto

Below is the generated python file.

# -*- coding: utf-8 -*-
# Generated by the protocol buffer compiler.  DO NOT EDIT!
# source: addressbook.proto
# Protobuf Python Version: 4.25.2
"""Generated protocol buffer code."""
from google.protobuf import descriptor as _descriptor
from google.protobuf import descriptor_pool as _descriptor_pool
from google.protobuf import symbol_database as _symbol_database
from google.protobuf.internal import builder as _builder
# @@protoc_insertion_point(imports)

_sym_db = _symbol_database.Default()




DESCRIPTOR = _descriptor_pool.Default().AddSerializedFile(b'\n\x11\x61\x64\x64ressbook.proto\x12\x08tutorial\"\xa3\x02\n\x06Person\x12\x0c\n\x04name\x18\x01 \x01(\t\x12\n\n\x02id\x18\x02 \x01(\x05\x12\r\n\x05\x65mail\x18\x03 \x01(\t\x12,\n\x06phones\x18\x04 \x03(\x0b\x32\x1c.tutorial.Person.PhoneNumber\x1aX\n\x0bPhoneNumber\x12\x0e\n\x06number\x18\x01 \x01(\t\x12\x39\n\x04type\x18\x02 \x01(\x0e\x32\x1a.tutorial.Person.PhoneType:\x0fPHONE_TYPE_HOME\"h\n\tPhoneType\x12\x1a\n\x16PHONE_TYPE_UNSPECIFIED\x10\x00\x12\x15\n\x11PHONE_TYPE_MOBILE\x10\x01\x12\x13\n\x0fPHONE_TYPE_HOME\x10\x02\x12\x13\n\x0fPHONE_TYPE_WORK\x10\x03\"/\n\x0b\x41\x64\x64ressBook\x12 \n\x06people\x18\x01 \x03(\x0b\x32\x10.tutorial.Person')

_globals = globals()
_builder.BuildMessageAndEnumDescriptors(DESCRIPTOR, _globals)
_builder.BuildTopDescriptorsAndMessages(DESCRIPTOR, 'addressbook_pb2', _globals)
if _descriptor._USE_C_DESCRIPTORS == False:
  DESCRIPTOR._options = None
  _globals['_PERSON']._serialized_start=32
  _globals['_PERSON']._serialized_end=323
  _globals['_PERSON_PHONENUMBER']._serialized_start=129
  _globals['_PERSON_PHONENUMBER']._serialized_end=217
  _globals['_PERSON_PHONETYPE']._serialized_start=219
  _globals['_PERSON_PHONETYPE']._serialized_end=323
  _globals['_ADDRESSBOOK']._serialized_start=325
  _globals['_ADDRESSBOOK']._serialized_end=372
# @@protoc_insertion_point(module_scope)

I don't find any generated classes and am not sure how to serialize or parse my data with this generated file.

In Python, protoc generates metaclasses (see Python Generated Code).

Generally (!) I'd discourage placing protoc-generated stubs anywhere other than ${PWD}. But, because you used Generated, you will want to add an empty __init__.py file in Generated to create a Python package.

.
├── addressbook.proto
├── Generated
│   ├── addressbook_pb2.py
│   ├── addressbook_pb2.pyi
│   └── __init__.py
└── main.py

Then you could e.g.:

from Generated import addressbook_pb2

p = addressbook_pb2.Person()
p.name = "Freddie"
p.email = "freddie@email.com"

print(p)

You can generate a PYI file for the generated code too using --pyi_out=${PWD}