_, rname, rparams := check.unpackRecv(recvPar.Type, true)
		if len(rparams) > 0 {
			// The scope of the type parameter T in "func (r T[T]) f()"
			// starts after f, not at "r"; see #52038.
			scopePos := ftyp.Pos()
			tparams := make([]*TypeParam, len(rparams))
			for i, rparam := range rparams {
				tparams[i] = check.declareTypeParam(rparam, scopePos)
			}

		_, rname, rparams := check.unpackRecv(recvPar.List[0].Type, true)
		if len(rparams) > 0 {
			// The scope of the type parameter T in "func (r T[T]) f()"
			// starts after f, not at "r"; see #52038.
			scopePos := ftyp.Params.Pos()
			tparams := check.declareTypeParams(nil, rparams, scopePos)
			sig.rparams = bindTParams(tparams)

func (r *importReader) kind() itag {
	return itag(r.uint64())
}

func (r *importReader) signature(recv *types.Var, rparams, tparams []*types.TypeParam) *types.Signature {
	params := r.paramList()
	results := r.paramList()
	variadic := params.Len() > 0 && r.bool()
	return types.NewSignatureType(recv, rparams, tparams, params, results, variadic)
}

func (r *importReader) tparamList() []*types.TypeParam {
	n := r.uint64()

	return src.NoXPos
}

func (t *Type) RParams() []*Type {
	if t.rparams == nil {
		return nil
	}
	return *t.rparams
}

func (t *Type) SetRParams(rparams []*Type) {
	if len(rparams) == 0 {
		base.Fatalf("Setting nil or zero-length rparams")
	}
	t.rparams = &rparams
	// HasShape should be set if any type argument is or has a shape type.
	for _, rparam := range rparams {
		if rparam.HasShape() {

		recv := t.recv

		params := subst.tuple(t.params)
		results := subst.tuple(t.results)
		if params != t.params || results != t.results {
			return &Signature{
				rparams: t.rparams,
				// TODO(gri) why can't we nil out tparams here, rather than in instantiate?
				tparams: t.tparams,
				// instantiated signatures have a nil scope
				recv:     recv,
				params:   params,
				results:  results,

		recv := t.recv

		params := subst.tuple(t.params)
		results := subst.tuple(t.results)
		if params != t.params || results != t.results {
			return &Signature{
				rparams: t.rparams,
				// TODO(gri) why can't we nil out tparams here, rather than in instantiate?
				tparams: t.tparams,
				// instantiated signatures have a nil scope
				recv:     recv,
				params:   params,
				results:  results,

func (r *reader) signature(recv *types.Var, rtparams, tparams []*types.TypeParam) *types.Signature {
	r.Sync(pkgbits.SyncSignature)

	params := r.params()
	results := r.params()
	variadic := r.Bool()

	return types.NewSignatureType(recv, rtparams, tparams, params, results, variadic)
}

func (r *reader) params() *types.Tuple {
	r.Sync(pkgbits.SyncParams)

	params := make([]*types.Var, r.Len())
	for i := range params {

package param

// Params for a Template.
type Params map[string]any

// NewParams returns a new Params instance.
func NewParams() Params {
	return make(Params)
}

func (p Params) Get(k string) any {
	return p[k]
}

func (p Params) GetWellKnown(k WellKnown) any {
	return p[k.String()]
}

func (p Params) Set(k string, v any) Params {
	p[k] = v
	return p
}

		return specific.ScalarBaseMult(k)
	}

	return curve.ScalarMult(curve.Gx, curve.Gy, k)
}

func matchesSpecificCurve(params *CurveParams) (Curve, bool) {
	for _, c := range []Curve{p224, p256, p384, p521} {
		if params == c.Params() {
			return c, true
		}
	}
	return nil, false

<img src="/img/tutorial/path-params/image01.png">

!!! check "Заметка"
    Ещё раз, просто используя определения типов, **FastAPI** обеспечивает автоматическую интерактивную документацию (с интеграцией Swagger UI).