code: def _get_background_tile(provider_name):
      """Returns a Bokeh WTMS Tile Provider Source from <provider_name>. If
      <provider_name is not valid, it returns False."""
  
      if provider_name not in TILE_PROVIDERS:
          return False
  
      return get_provider(provider_name)
  
file_path: Pandas-Bokeh/pandas_bokeh/geoplot.py
imports: import numbers
  from collections.abc import Hashable, Iterable
  import numpy
  import pandas
  from bokeh.colors import RGB
  from bokeh.models import NumeralTickFormatter, TickFormatter
  from bokeh.tile_providers import get_provider
  from .base import embedded_html
label_desc: Use image node_id 1 for calling a global function with example usage: _get_background_tile(provider_name) and returns: get_provider, False