@staticmethod
def process_sink_covariates(covariates):
    """Process sink covariates before saving them.
        
        This method is applied to the sink covariates before they are saved.
        The method can be used to compute derived covariates
        
        Parameters
        ----------
        covariates : float[]
            Covariates describing the attractiveness of sinks
        
        """
    return covariates
