import math


def test1(x):
    """
    >>> test1(3)
    0.1411200080598672

    >>> import dis
    >>> dis.dis(test1)
     23           0 LOAD_GLOBAL              0 (math)
                  3 LOAD_ATTR                1 (sin)
                  6 LOAD_FAST                0 (x)
                  9 CALL_FUNCTION            1 (1 positional, 0 keyword pair)
                 12 RETURN_VALUE
    """
    return math.sin(x)