You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: SpecDRAM_ProposalModel_class.m
    path of file: ./repos/paramonte/src/interface/MATLAB/paramonte/kernel
    
    the code of the file until where you have to start completion: %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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function self = SpecDRAM_ProposalModel_class()
            self.isUniform  = false;
            self.isNormal   = false;
            self.uniform    = "uniform";
            self.normal     = "normal";
            self.def        = self.normal;
            self.desc       = "proposalModel is a string variable containing the name of the proposal distribution for the MCMC sampler. "              ...
                            + "The string value must be enclosed by either single or double quotation marks when provided as input. "                   ...
                            + "One option is currently supported:" + newline + newline                                                                  ...
                            + "    proposalModel = '" + self.uniform + "'" + newline + newline                                                          ...
                            + "            The proposals will be drawn uniformly from within a ndim-dimensional ellipsoid whose covariance matrix "     ...
                            + "and scale are initialized by the user and optionally adaptively updated throughout the simulation." + newline + newline  ...
                            + "The default value is '" + self.def + "'."                                                                                ...
                            ;
        end