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from sqlalchemy import (
Column,
Float,
Integer,
MetaData,
String,
Table,
create_engine,
insert,
inspect,
text,
)
engine = create_engine("sqlite:///:memory:")
metadata_obj = MetaData()
# create city SQL table
table_name = "receipts"
receipts = Table(
table_name,
metadata_obj,
Column("receipt_id", Integer, primary_key=True),
Column("customer_name", String(16), primary_key=True),
Column("price", Float),
Column("tip", Float),
)
metadata_obj.create_all(engine)
rows = [
{"receipt_id": 1, "customer_name": "Alan Payne", "price": 12.06, "tip": 1.20},
{"receipt_id": 2, "customer_name": "Alex Mason", "price": 23.86, "tip": 0.24},
{"receipt_id": 3, "customer_name": "Woodrow Wilson", "price": 53.43, "tip": 5.43},
{"receipt_id": 4, "customer_name": "Margaret James", "price": 21.11, "tip": 1.00},
]
for row in rows:
stmt = insert(receipts).values(**row)
with engine.begin() as connection:
cursor = connection.execute(stmt)
inspector = inspect(engine)
columns_info = [(col["name"], col["type"]) for col in inspector.get_columns("receipts")]
table_description = "Columns:\n" + "\n".join([f" - {name}: {col_type}" for name, col_type in columns_info])
print(table_description)
from smolagents import tool
@tool
def sql_engine(query: str) -> str:
"""
Allows you to perform SQL queries on the table. Returns a string representation of the result.
The table is named 'receipts'. Its description is as follows:
Columns:
- receipt_id: INTEGER
- customer_name: VARCHAR(16)
- price: FLOAT
- tip: FLOAT
Args:
query: The query to perform. This should be correct SQL.
"""
output = ""
with engine.connect() as con:
rows = con.execute(text(query))
for row in rows:
output += "\n" + str(row)
return output
from smolagents import CodeAgent, HfApiModel
agent = CodeAgent(
tools=[sql_engine],
model=HfApiModel("meta-llama/Meta-Llama-3.1-8B-Instruct"),
)
agent.run("Can you give me the name of the client who got the most expensive receipt?")
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