code: def test_size_column():
      df = px.data.tips()
      fig = px.scatter(df, x=df["size"], y=df.tip)
      assert (
          fig.data[0].hovertemplate
          == "size=%{x}<br>tip=%{y}<extra></extra>"
      )
  
imports: import plotly.express
  import plotly.graph_objects
  import numpy
  import pandas
  import pytest
  from packaging import version
  import unittest.mock
  from plotly.express._core import build_dataframe
  from pandas.testing import assert_frame_equal
label_desc: Use image node_id 28 for calling a global function with example usage: test_size_column() without return types