class_docstr: Test ActionClip prompts
code: def test_taggregate(self):
      x = torch.rand(1, 1, 8)
      layer = TAggregate(clip_length=0, embed_dim=8, n_layers=2)
      outs = layer(x)
      self.assertTrue(outs.shape == (1, 8))
  
imports: import unittest
  import torch
  from collections import OrderedDict
  from towhee.models.action_clip.visual_prompt import TAggregate, VisualPrompt, TemporalTransformer
label_desc: Use image node_id 1 for calling the TestPrompt obj's underlying member method code with example usage: obj.test_taggregate() without return types