code: def test_empty(db):
      from sqlalchemy import (
          Column,
          Integer,
          MetaData,
          Table,
          create_engine,
      )
  
      with tmpfile() as f:
          uri = "sqlite:///%s" % f
          metadata = MetaData()
          engine = create_engine(uri)
          table = Table(
              "empty_table",
              metadata,
              Column("id", Integer, primary_key=True),
              Column("col2", Integer),
          )
          metadata.create_all(engine)
  
          dask_df = read_sql_table(
              table.name, uri, index_col="id", npartitions=1
          )
          assert dask_df.index.name == "id"
          # The dtype of the empty result might no longer be as expected
          # assert dask_df.col2.dtype == np.dtype("int64")
          pd_dataframe = dask_df.compute()
          assert pd_dataframe.empty is True
  
imports: from __future__ import annotations
  import io
  import sys
  from contextlib import contextmanager
  import pytest
  from dask.dataframe.io.sql import read_sql, read_sql_query, read_sql_table
  from dask.dataframe.utils import assert_eq, get_string_dtype
  from dask.utils import tmpfile
label_desc: Use image node_id 2 for calling a global function with example usage: test_empty(db) without return types