chore: load chunker from config (#270)

tests/chunkers/test_text.py

@@ -3,6 +3,7 @@
 import unittest
 
 from embedchain.chunkers.text import TextChunker
+from embedchain.config import ChunkerConfig
 
 
 class TestTextChunker(unittest.TestCase):
@@ -11,11 +12,7 @@ class TestTextChunker(unittest.TestCase):
         Test the chunks generated by TextChunker.
         # TODO: Not a very precise test.
         """
-        chunker_config = {
-            "chunk_size": 10,
-            "chunk_overlap": 0,
-            "length_function": len,
-        }
+        chunker_config = ChunkerConfig(chunk_size=10, chunk_overlap=0, length_function=len)
         chunker = TextChunker(config=chunker_config)
         text = "Lorem ipsum dolor sit amet, consectetur adipiscing elit."