code: def _project_wgs84_to_latlon(x, y):
      """
      Projects WGS84 to lat and lon, used to get regular hexagons on a mapbox map
      """
      lon = x * 180 / np.pi
      lat = (2 * np.arctan(np.exp(y)) - np.pi / 2) * 180 / np.pi
      return lat, lon
  
file_path: catboost/contrib/python/plotly/py2/plotly/figure_factory/_hexbin_mapbox.py
imports: from plotly.express._core import build_dataframe
  from plotly.express._doc import make_docstring
  from plotly.express._chart_types import choropleth_mapbox, scatter_mapbox
  import numpy
  import pandas
label_desc: Use image node_id 2 for calling a global function with example usage: _project_wgs84_to_latlon(x, y) and returns: lat,  lon