Let’s load the DashScope Embedding class. 
from langchain_community.embeddings import DashScopeEmbeddings

embeddings = DashScopeEmbeddings(
    model="text-embedding-v1", dashscope_api_key="your-dashscope-api-key"
)

text = "This is a test document."

query_result = embeddings.embed_query(text)
print(query_result)

doc_results = embeddings.embed_documents(["foo"])
print(doc_results)