// 1. `stablehlo.constant`
// 2. `stablehlo.constant`->`stablehlo.transpose`.
//
// TODO: b/328156969 - Support the case where the RHS doesn't come from a
// constant.
TFL::QConstOp CreateTflConstOpForFilter(Operation* rhs_op,
                                        PatternRewriter& rewriter,
                                        const bool is_per_channel) {