def _represent_numpy_complex(dumper, npcomplex: 'numpy.complex_') ->str:
    """
    Convert the passed Numpy complex number into a YAML-formatted string.

    Specifically, this function returns a stringified YAML complex number
    equivalent to the passed complex number.

    Parameters
    ----------
    dumper: yaml.Dumper
        Object converting arbitrary Python objects to YAML-formatted strings.
    npcomplex: numpy.ndarray
        Numpy complex number to be converted into a YAML-formatted string.

    Returns
    ----------
    str
        YAML-formatted string representing this Numpy complex number.
    """
    return dumper.represent_complex(complex(npcomplex))
