def ytickvals(self, values, index=1):
        """Set the tick values.

        Parameters
        ----------
        values : array-like

        Returns
        -------
        Chart

        """
        self.layout['yaxis' + str(index)]['tickvals'] = values
        return self
def ytickvals ( self , values , index = 1 ) : self . layout [ 'yaxis' + str ( index ) ] [ 'tickvals' ] = values return self
Set the tick values.

        Parameters
        ----------
        values : array-like

        Returns
        -------
        Chart