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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 _number_or_timestamp_handler(c, ctx):
 """Handles numeric values that start with digits 1-9. May terminate a value, in which case that value is an int. If it does not terminate a value, it branches to delegate co-routines according to _NUMBER_OR_TIMESTAMP_TABLE. """

    assert c in _DIGITS
    ctx.set_ion_type(IonType.INT)  # If this is the last digit read, this value is an Int.
    val = ctx.value
    val.append(c)
    c, self = yield
    trans = ctx.immediate_transition(self)
    while True:
        if _ends_value(c):
            trans = ctx.event_transition(IonThunkEvent, IonEventType.SCALAR,
                                         ctx.ion_type, _parse_decimal_int(ctx.value))
            if c == _SLASH:
                trans = ctx.immediate_transition(_number_slash_end_handler(c, ctx, trans))
        else:
            if c not in _DIGITS:
                trans = ctx.immediate_transition(_NUMBER_OR_TIMESTAMP_TABLE[c](c, ctx))
            else:
                val.append(c)
        c, _ = yield trans