def join(self, another):
if another is None:<EOL><INDENT>raise AttributeError("<STR_LIT>")<EOL><DEDENT>if not isinstance(another, BaseMesh):<EOL><INDENT>raise TypeError("<STR_LIT>")<EOL><DEDENT>self.data = numpy.append(self.data, another.data)<EOL>self.normals = numpy.append(self.normals, another.normals, axis=<NUM_LIT:0>)<EOL>self.vectors = numpy.append(self.vectors, another.vectors, axis=<NUM_LIT:0>)<EOL>self.attr = numpy.append(self.attr, another.attr, axis=<NUM_LIT:0>)<EOL>return self<EOL>
:param m: BaseMesh
:return: