diff --git a/gitlab/base.py b/gitlab/base.py
@@ -7,7 +7,7 @@
import textwrap
from collections.abc import Iterable
from types import ModuleType
-from typing import Any, ClassVar, Generic, TYPE_CHECKING, TypeVar

import gitlab
from gitlab import types as g_types
@@ -351,6 +351,7 @@ class RESTManager(Generic[TObjCls]):
    _path: ClassVar[str]
    _obj_cls: type[TObjCls]
    _from_parent_attrs: dict[str, Any] = {}
    _types: dict[str, type[g_types.GitlabAttribute]] = {}

    _computed_path: str
@@ -389,6 +390,18 @@ def _compute_path(self, path: str | None = None) -> str:
        self._parent_attrs = data
        return path.format(**data)

    @property
    def path(self) -> str:
        return self._computed_path
diff --git a/gitlab/v4/objects/merge_trains.py b/gitlab/v4/objects/merge_trains.py
@@ -1,14 +1,44 @@
-from gitlab.base import RESTObject
-from gitlab.mixins import ListMixin

-__all__ = ["ProjectMergeTrain", "ProjectMergeTrainManager"]


-class ProjectMergeTrain(RESTObject):
    pass


-class ProjectMergeTrainManager(ListMixin[ProjectMergeTrain]):
    _path = "/projects/{project_id}/merge_trains"
    _obj_cls = ProjectMergeTrain
    _from_parent_attrs = {"project_id": "id"}

diff --git a/tests/unit/mixins/test_mixin_methods.py b/tests/unit/mixins/test_mixin_methods.py
@@ -584,7 +584,6 @@ class TestClass(UploadMixin, FakeObject):
        url=url,
        json={"id": 42, "file_name": "test.txt", "file_content": "testing contents"},
        status=200,
-        match=[responses.matchers.query_param_matcher({})],
    )

    mgr = FakeManager(gl)
@@ -596,3 +595,101 @@ class TestClass(UploadMixin, FakeObject):
    assert res_only_path["file_name"] == "test.txt"
    assert res_only_path["file_content"] == "testing contents"
    assert responses.assert_call_count(url, 1) is True
diff --git a/tests/unit/objects/test_merge_trains.py b/tests/unit/objects/test_merge_trains.py
@@ -3,15 +3,17 @@
https://docs.gitlab.com/ee/api/merge_trains.html
"""

import pytest
import responses

-from gitlab.v4.objects import ProjectMergeTrain

mr_content = {
    "id": 110,
    "merge_request": {
-        "id": 1,
        "iid": 1,
        "project_id": 3,
        "title": "Test merge train",
@@ -46,6 +48,10 @@
    "duration": 70,
}


@pytest.fixture
def resp_list_merge_trains():
@@ -60,7 +66,62 @@ def resp_list_merge_trains():
        yield rsps


def test_list_project_merge_requests(project, resp_list_merge_trains):
    merge_trains = project.merge_trains.list()
    assert isinstance(merge_trains[0], ProjectMergeTrain)
    assert merge_trains[0].id == mr_content["id"]