@classmethod
def create_datasource_band(cls, name, number, wavelength):
    """Create a datasource band

        Args:
            name (str): name of band, e.g. 'read', 'blue', 'infrared', etc.
            number (str): band number
            wavelength (str): wavelength

        Returns:
            dict: a band definition of a datasource band
        """
    return dict(name=name, number=number, wavelength=wavelength)
