""" Represent granular events that can be used to trigger callbacks.

Bokeh documents and applications are capable of supporting various kinds of
interactions. These are often associated with events, such as mouse or touch
events, interactive downsampling mode activation, widget or tool events, and
others. The classes in this module represent these different events, so that
callbacks can be attached and executed when they occur.

It is possible to respond to events with ``CustomJS`` callbacks, which will
function with or without a Bokeh server. This can be accomplished by passing
and event class, and a ``CustomJS`` model to the
:func:`~bokeh.model.Model.js_on_event` method. When the ``CustomJS`` is
executed in the browser, its ``cb_obj`` argument will contain the concrete
event object that triggered the callback.

.. code-block:: python

    from bokeh.events import ButtonClick
    from bokeh.models import Button, CustomJS

    button = Button(                 )

    button.js_on_event(ButtonClick, CustomJS(
        
        
        code='console.log("JS:Click")'))

Alternatively it is possible to trigger Python code to run when events
happen, in the context of a Bokeh application running on a Bokeh server.
This can accomplished by passing an event class, and a callback function
to the the :func:`~bokeh.model.Model.on_event` method. The callback should
accept a single argument ``event``, which will be passed the concrete
event object that triggered the callback.

.. code-block:: python

    from bokeh.events import ButtonClick
    from bokeh.models import Button

    button = Button()

    def callback(event         ):
        print('Python:Click')

    button.on_event(ButtonClick, callback)

.. note ::
    There is no throttling of events. Some events such as ``MouseMove``
    may trigger at a very high rate.

"""

def function():
    """ Represent granular events that can be used to trigger callbacks.

Bokeh documents and applications are capable of supporting various kinds of
interactions. These are often associated with events, such as mouse or touch
events, interactive downsampling mode activation, widget or tool events, and
others. The classes in this module represent these different events, so that
callbacks can be attached and executed when they occur.

It is possible to respond to events with ``CustomJS`` callbacks, which will
function with or without a Bokeh server. This can be accomplished by passing
and event class, and a ``CustomJS`` model to the
:func:`~bokeh.model.Model.js_on_event` method. When the ``CustomJS`` is
executed in the browser, its ``cb_obj`` argument will contain the concrete
event object that triggered the callback.

.. code-block:: python

    from bokeh.events import ButtonClick
    from bokeh.models import Button, CustomJS

    button = Button(                 )

    button.js_on_event(ButtonClick, CustomJS(
        
        
        code='console.log("JS:Click")'))

Alternatively it is possible to trigger Python code to run when events
happen, in the context of a Bokeh application running on a Bokeh server.
This can accomplished by passing an event class, and a callback function
to the the :func:`~bokeh.model.Model.on_event` method. The callback should
accept a single argument ``event``, which will be passed the concrete
event object that triggered the callback.

.. code-block:: python

    from bokeh.events import ButtonClick
    from bokeh.models import Button

    button = Button()

    def callback(event         ):
        print('Python:Click')

    button.on_event(ButtonClick, callback)

.. note ::
    There is no throttling of events. Some events such as ``MouseMove``
    may trigger at a very high rate.

"""