import type * as t from '@babel/types';
export declare function yieldExpression(argument?: t.Expression | null | undefined, delegate?: boolean): t.YieldExpression;
export declare function isYieldExpression(node: t.Node | null | undefined): node is t.YieldExpression;
export declare function assertYieldExpression(node: t.Node | null | undefined): asserts node is t.YieldExpression;
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