import type { IrType } from "@tsonic/frontend";
import type { EmitterContext } from "../../types.js";
import type { CSharpTypeAst } from "../format/backend-ast/types.js";
export declare const getAcceptedSurfaceType: (type: IrType | undefined, isOptional: boolean) => IrType | undefined;
export declare const getAcceptedParameterType: (parameterType: IrType | undefined, isOptional: boolean) => IrType | undefined;
export declare const emitTypedDefaultAst: (expectedType: IrType | undefined, context: EmitterContext) => [CSharpTypeAst | undefined, EmitterContext];
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