more specific dummy data

ldm/data/dummy.py

@@ -16,3 +16,19 @@ class DummyData(Dataset):
         letters = string.ascii_lowercase
         y = ''.join(random.choice(string.ascii_lowercase) for i in range(10))
         return {"jpg": x, "txt": y}
+
+
+class DummyDataWithEmbeddings(Dataset):
+    def __init__(self, length, size, emb_size):
+        self.length = length
+        self.size = size
+        self.emb_size = emb_size
+
+    def __len__(self):
+        return self.length
+
+    def __getitem__(self, i):
+        x = np.random.randn(*self.size)
+        y = np.random.randn(*self.emb_size).astype(np.float32)
+        return {"jpg": x, "txt": y}
+