`SchemaValidationError` 相关性启发法存在缺陷

import altair as alt from altair.utils.schemapi import SchemaValidationError two_err_2 = alt.value(1, bin=True, aggregate="sum") try: alt.Chart().mark_point().encode(y=two_err_2).to_dict() except SchemaValidationError as err: some = err

some.instance {'value': 1, 'bin': True, 'aggregate': 'sum'} some.message "YValue has no parameter named 'value'\n\nExisting parameter names are:\nvalue\n\nSee the help for YValue to read more about the available parameters."