from agno.knowledge.knowledge import Knowledgefrom agno.vectordb.pgvector import PgVectorfrom agno.knowledge.embedder.fastembed import FastEmbedEmbedder# Embed sentence in databaseembeddings = FastEmbedEmbedder().get_embedding("The quick brown fox jumps over the lazy dog.")# Print the embeddings and their dimensionsprint(f"Embeddings: {embeddings[:5]}")print(f"Dimensions: {len(embeddings)}")# Use an embedder in a knowledge baseknowledge = Knowledge( vector_db=PgVector( db_url="postgresql+psycopg://ai:ai@localhost:5532/ai", table_name="qdrant_embeddings", embedder=FastEmbedEmbedder(), ), max_results=2,)