The function bar_plot in the module hana_ml.visualizers.eda_plotly displays a bar plot for a specified column in a SAP HANA DataFrame, with options to aggregate data, customize the title, orientation, and font properties of the title.
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Here is the executable code template based on the help doc:

```python
# Import necessary libraries
from hana_ml.visualizers.eda_plotly import bar_plot

# Assuming 'data' is your DataFrame
column = 'your_column'  # replace 'your_column' with your column name
aggregation = {'your_column':'count'}  # replace 'your_column' with your column name

# Generate the bar plot
fig, bar_data = bar_plot(data=data, column=column, aggregation=aggregation)

# Show the plot
fig.show()
```

You can modify the `column` and `aggregation` variables as per your requirements. If you want to use other optional parameters like `title`, `orientation`, or `title_fontproperties`, you can add them in the `bar_plot` function call. For example:

```python
title = 'Your Title'
orientation = 'h'  # for horizontal plot
fig, bar_data = bar_plot(data=data, column=column, aggregation=aggregation, title=title, orientation=orientation)
```