from typing import List


def get_povm_names_1qutrit() -> List[str]:
    """Return the list of valid povm names on 1-qutrit system.

    Returns
    -------
    List[str]
        the list of valid povm names on 1-qutrit system.
    """
    names = ["01x3", "01y3", "z3", "z2", "02x3", "02y3", "12x3", "12y3"]
    return names