[Model] Add circlestone-labs/Anima (#4083)

Signed-off-by: akshatvishu <akshatnayak197@gmail.com>

tests/model_tests/diffusion/test_common_offline.py

@@ -1,6 +1,8 @@
 # SPDX-License-Identifier: Apache-2.0
 # SPDX-FileCopyrightText: Copyright contributors to the vLLM-Omni project
 
+from pathlib import Path
+
 import pytest
 
 from tests.model_tests.diffusion.case_filtering import get_parametrized_options
@@ -47,10 +49,17 @@ def test_pipeline_on_supported_tasks(
     # since starting the server can take 10+ seconds, even for tiny models.
     #
     # NOTE: Be sure to install pytest-subtests if you're running on pytest < 9
+    settings = DIFFUSION_TEST_SETTINGS[model_name]
+    model_path = tiny_model_paths[model_name]
+    model_kwargs = {}
+    if settings.checkpoint_filename is not None:
+        model_path = str(Path(model_path) / settings.checkpoint_filename)
+        model_kwargs["model_class_name"] = model_name
     omni = build_omni_from_diff_accelerations(
         accelerations=accelerations,
-        model=tiny_model_paths[model_name],
+        model=model_path,
         enforce_eager=True,
+        **model_kwargs,
     )
     try:
         for task_type in supported_tasks: