nits (#210)

use json.dump

move test to integration tests (since it requires huggingface_hub)

tests/unit_tests/embeddings/__init__.py

@@ -1 +0,0 @@
-"""All unit tests for Embeddings objects."""

tests/unit_tests/embeddings/test_huggingface_hub.py

@@ -1,11 +0,0 @@
-"""Test HuggingFaceHub embeddings."""
-import pytest
-
-from langchain.embeddings import HuggingFaceHubEmbeddings
-
-
-def test_huggingfacehub_embedding_invalid_repo() -> None:
-    """Test huggingfacehub embedding repo id validation."""
-    # Only sentence-transformers models are currently supported.
-    with pytest.raises(ValueError):
-        HuggingFaceHubEmbeddings(repo_id="allenai/specter")