class_docstr: Add a field that shows the coordinates of the mouse position.
  
  Uses the Leaflet plugin by Ardhi Lukianto under MIT license.
  https://github.com/ardhi/Leaflet.MousePosition
  
  Parameters
  ----------
  position : str, default 'bottomright'
      The standard Control position parameter for the widget.
  separator : str, default ' : '
      Character used to separate latitude and longitude values.
  empty_string : str, default 'Unavailable'
     Initial text to display.
  lng_first : bool, default False
      Whether to put the longitude first or not.
      Set as True to display longitude before latitude.
  num_digits : int, default '5'
      Number of decimal places included in the displayed
      longitude and latitude decimal degree values.
  prefix : str, default ''
      A string to be prepended to the coordinates.
  lat_formatter : str, default None
      Custom Javascript function to format the latitude value.
  lng_formatter : str, default None
      Custom Javascript function to format the longitude value.
  
  Examples
  --------
  >>> fmtr = "function(num) {return L.Util.formatNum(num, 3) + ' º ';};"
  >>> MousePosition(
  ...     position="topright",
  ...     separator=" | ",
  ...     prefix="Mouse:",
  ...     lat_formatter=fmtr,
  ...     lng_formatter=fmtr,
  ... )
code: def __init__(
      self,
      position="bottomright",
      separator=" : ",
      empty_string="Unavailable",
      lng_first=False,
      num_digits=5,
      prefix="",
      lat_formatter=None,
      lng_formatter=None,
      **kwargs,
  ):
      super().__init__()
      self._name = "MousePosition"
  
      self.options = parse_options(
          position=position,
          separator=separator,
          empty_string=empty_string,
          lng_first=lng_first,
          num_digits=num_digits,
          prefix=prefix,
          **kwargs,
      )
      self.lat_formatter = lat_formatter or "undefined"
      self.lng_formatter = lng_formatter or "undefined"
  
imports: from branca.element import MacroElement
  from jinja2 import Template
  from folium.elements import JSCSSMixin
  from folium.utilities import parse_options
label_desc: Use image node_id 1 to create a new MousePosition object from inherited base classes: JSCSSMixin, MacroElement with example: obj = MousePosition(position, separator, empty_string, lng_first, num_digits, prefix, lat_formatter, lng_formatter)