@property<EOL><INDENT>def m200(self):<DEDENT>
if self._m200 is None:<EOL><INDENT>raise AttributeError('<STR_LIT>')<EOL><DEDENT>else:<EOL><INDENT>return self._m200<EOL><DEDENT>
Cluster masses.

        Mass interior to a sphere of radius r200. If m200 is set directly,
        then richness n200 is calculated from m200 using the mass-richness
        scaling relation specified by the parameters massrich_norm and
        massrich_slope. If n200 is set directly, then m200 is calculated
        from n200 using the same scaling relation. Changes to m200 will
        propagate to all mass-dependant variables.

        :property: Returns cluster masses in Msun
        :property type: Quantity
            1D ndarray, with astropy.units of Msun.
        :setter: Sets cluster mass values in Msun
        :setter type: array_like
            Should be 1D array or list, optionally with units.