def _number_negative_start_handler(c, ctx):
    """Handles numeric values that start with a negative sign. Branches to delegate co-routines according to
    _NEGATIVE_TABLE.
    """
    assert c == _MINUS
    assert len(ctx.value) == 0
    ctx.set_ion_type(IonType.INT)
    ctx.value.append(c)
    c, _ = yield
    yield ctx.immediate_transition(_NEGATIVE_TABLE[c](c, ctx))
def _number_negative_start_handler ( c , ctx ) : assert c == _MINUS assert len ( ctx . value ) == 0 ctx . set_ion_type ( IonType . INT ) ctx . value . append ( c ) c , _ = yield yield ctx . immediate_transition ( _NEGATIVE_TABLE [ c ] ( c , ctx ) )
Handles numeric values that start with a negative sign. Branches to delegate co-routines according to
    _NEGATIVE_TABLE.