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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def make_mercator(attrs_dict, globe):
 """Handle Mercator projection."""

    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)