Allow Task.get_tasks() to filter by list of project ids

trains/binding/frameworks/__init__.py

@@ -2,7 +2,6 @@ import os
 import shutil
 import sys
 import threading
-import weakref
 from enum import Enum
 from random import randint
 from tempfile import mkstemp

trains/task.py

@@ -2330,7 +2330,7 @@ class Task(_Task):
             cls._get_default_session(),
             tasks.GetAllRequest(
                 id=task_ids,
-                project=[project.id] if project else None,
+                project=[project.id] if project else kwargs.pop('project', None),
                 name=task_name if task_name else None,
                 only_fields=only_fields,
                 **kwargs