// Analysis Hooks
  //===--------------------------------------------------------------------===//

  // Returns if it's legal to inline 'callable' into the 'call', where 'call' is
  // a TF operation.
  bool isLegalToInline(Operation *call, Operation *callable,
                       bool wouldBeCloned) const final {
    // Skip inlining for TPUPartitionedCalls and RemoteCalls.
    if (isa<TPUPartitionedCallOp>(call)) return false;

 public:
  // Allow all call operations to be inlined.
  bool isLegalToInline(Operation *call, Operation *callable,
                       bool wouldBeCloned) const final {
    return true;
  }
  // Returns true if the given region 'src' can be inlined into the region
  // 'dest' that is attached to an operation registered to the current dialect.
  bool isLegalToInline(Region *dest, Region *src, bool wouldBeCloned,

  // Returns whether it's legal to inline a call to a function.
  bool isLegalToInline(Operation* call, Operation* callable,
                       bool wouldBeCloned) const final {
    if (isa<ClusterFuncOp>(call)) return false;
    return true;
  }

  // Returns if its legal to inline 'src' region into the 'dest' region
  // attached to a TF Device operation.
  bool isLegalToInline(Region* dest, Region* src, bool wouldBeCloned,

namespace tfrt {
namespace fallback_async {

namespace {

struct FallbackInlinerInterface : public mlir::DialectInlinerInterface {
  using DialectInlinerInterface::DialectInlinerInterface;

  bool isLegalToInline(Operation *op, Region *dest, bool would_be_cloned,
                       IRMapping &) const final {
    return true;
  }
};

}  // namespace

FallbackAsyncDialect::FallbackAsyncDialect(MLIRContext *context)

  // Allow all call operations to be inlined.
  bool isLegalToInline(Operation *call, Operation *callable,
                       bool wouldBeCloned) const final {
    return true;
  }
  // Override the inlining hook to determine if 'src' can be inlined into
  // 'dest'.
  bool isLegalToInline(Region *dest, Region *src, bool wouldBeCloned,
                       IRMapping &value_mapping) const final {