Проєктування агентних систем з LangChain
Dilini K. Sumanapala, PhD
Founder & AI Engineer, Genverv, Ltd.
User: Where is the Congo?Agent: Let me check some details for you...Agent: AIMessage([Tool Call to Google Maps] Searching for information on "the Congo")Agent: The Democratic Republic of Congo is a country in Central Africa.
# Визначте функцію для запуску чатбота за введенням користувача def stream_graph_updates(user_input: str):# Почніть транслювати події з графа з введенням користувача for event in graph.stream({"messages": [("user", user_input)]}):# Отримайте та виведіть відповіді вузлів чатбота for value in event.values(): print("Agent:", value["messages"])# Задайте запит користувача та запустіть чатбота user_query = "Who is Mary Shelley?" stream_graph_updates(user_query)
Agent: [AIMessage(content='Mary Shelley (1797-1851) was an English novelist......best known for her groundbreaking work in the Gothic genre, particularly for her novel "Frankenstein; or, The Modern Prometheus," published in 1818. This novel is often considered one of the earliest examples of science fiction and explores themes of creation, responsibility, and the nature of humanity through the story of Victor Frankenstein, a scientist who creates a sentient creature in an unorthodox experiment...',response_metadata={'finish_reason': 'stop', 'model_name': 'gpt-4o-mini-...')]
Agent: [AIMessage(content='Judith
Love Cohen was an American aerospace
engineer, and worked on various
space missions, including the Apollo
program... Cohen was also the mother
of actor and writer Adam Cohen,
who has spoken about her influence on
his life and career.
additional_kwargs={},
response_metadata={'finish_reason':
'stop', 'model_name':
'gpt-4o-mini-...)
# Імпортуйте модулі для діаграми чатбота from IPython.display import Image, display# Спробуйте згенерувати й показати # діаграму графа try: display(Image(graph.get_graph() .draw_mermaid_png()))# За потреби поверніть виняток except Exception: print("Additional dependencies required.")

Проєктування агентних систем з LangChain