Function xpath

xpath(
    a0: undefined | string | Text<0 | 1>,
    a1: Xml<0 | 1>,
): Array<0 | 1, Xml<0 | 1>>

xpath(
    a0: undefined | string | Text<0 | 1>,
    a1: Xml<0 | 1>,
    a2: Array<0 | 1, Text<0 | 1>>,
): Array<0 | 1, Xml<0 | 1>>