def METHOD_NAME(self, use_reaper=False):
    '''Read genotype from .geno file instead of database'''
    # genotype_1 is Dataset Object without parents and f1
    # genotype_2 is Dataset Object with parents and f1 (not for intercross)
    # reaper barfs on unicode filenames, so here we ensure it's a string
    if self.genofile:
        if "RData" in self.genofile:  # ZS: This is a temporary fix; I need to change the way the JSON files that point to multiple genotype files are structured to point to other file types like RData
            full_filename = str(
                locate(self.genofile.split(".")[0] + ".geno", 'genotype'))
        else:
            full_filename = str(locate(self.genofile, 'genotype'))
    else:
        full_filename = str(locate(self.name + '.geno', 'genotype'))
    genotype_1 = gen_geno_ob.genotype(full_filename)
    if genotype_1.type == "group" and self.parlist:
        genotype_2 = genotype_1.add(
            Mat=self.parlist[0], Pat=self.parlist[1])  # , F1=_f1)
    else:
        genotype_2 = genotype_1
    # determine default genotype object
    if self.incparentsf1 and genotype_1.type != "intercross":
        genotype = genotype_2
    else:
        self.incparentsf1 = 0
        genotype = genotype_1
    self.samplelist = list(genotype.prgy)
    return genotype