def from_full_alpha_values(cls, full_alpha_values):
        """Return AlphaMask instance from alpha values."""
        ### we create a copy of the alpha values list of
        ### lists, but this time with the items converted
        ### to floats in the unit interval (from 0.000...
        ### to 1.0, that is, fully transparent to fully
        ### opaque)

        unit_alpha_values = unit_from_full_alpha_values(full_alpha_values)

        ### pass both lists of lists representing alpha
        ### values in different formats to the class
        ### and return the resulting instance
        return cls(full_alpha_values, unit_alpha_values)
Return AlphaMask instance from alpha values.
nodezator/alphamask/main.py