code: def make_mercator(attrs_dict, globe):
      
      attr_mapping = [('latitude_true_scale', 'standard_parallel'),
                      ('scale_factor', 'scale_factor_at_projection_origin')]
      kwargs = CFProjection.build_projection_kwargs(attrs_dict, attr_mapping)
  
      # Work around the fact that in CartoPy <= 0.16 can't handle the easting/northing
      # in Mercator
      if not kwargs.get('false_easting'):
          kwargs.pop('false_easting', None)
      if not kwargs.get('false_northing'):
          kwargs.pop('false_northing', None)
  
      return ccrs.Mercator(globe=globe, **kwargs)
docs: Handle Mercator projection.