update: misleading variable name (#1015)

                            is RustType.Vec -> with(core) { renderVecHelper(member, memberName, coreType) }

                            is RustType.HashMap -> with(core) { renderMapHelper(member, memberName, coreType) }

                            else -> {

                                val signature = coreType.asArgument("signature")

                                val functionInput = coreType.asArgument("input")

                                documentShape(member, model)

                                rustBlock("pub fn $memberName(mut self, ${signature.argument}) -> Self") {

                                    write("self.inner = self.inner.$memberName(${signature.value});")

                                rustBlock("pub fn $memberName(mut self, ${functionInput.argument}) -> Self") {

                                    write("self.inner = self.inner.$memberName(${functionInput.value});")

                                    write("self")

                                }

                            }