yield from _make_aliases(f'1099{s[5:]}', stdname)

    elif s.startswith('USA-'):

        yield from _make_aliases(f'US-{s[4:]}', stdname)

    if s.endswith('-Corporation'):

        yield from _make_aliases(f'{s[:-12]}-Corp', stdname)

class MetaTaxImplication(core._NormalizePostingMetadataHook):

    _STDNAMES = [

        '1099-MISC-Other',

        '1099-NEC',

        'Bank-Transfer',

        'Chargeback',

        'Foreign-Corporation',

        'Foreign-Grantee',

        'Foreign-Individual-Contractor',

        'Loan',

        'Refund',

        'Reimbursement',

        'Retirement-Pretax',

        'Tax-Payment',

        'USA-501c3',

        'USA-Corporation',

        'USA-Grantee',

        'W2',

    ]

    _ALIASES = dict(

        alias for value in _STDNAMES for alias in _make_aliases(value)

    )

    _ALIASES['1099'] = '1099-NEC'

    VALUES_ENUM = core.MetadataEnum('tax-implication', _STDNAMES, _ALIASES)

    del _STDNAMES, _ALIASES

    def __init__(self, config: configmod.Config) -> None:

        self.payment_threshold = -config.payment_threshold()

    def _run_on_post(self, txn: Transaction, post: data.Posting) -> bool:

        return (

            post.account.is_cash_equivalent()

            and post.units.number < self.payment_threshold

        )