import { NameOrCtorDef } from "./types";
declare function assert<T extends {}>(val: T | null | undefined): T;
declare function assertInPatch(functionName: string): void;
declare function assertNoUnclosedTags(openElement: Node | null, root: Node | DocumentFragment): void;
declare function assertPatchOuterHasParentNode(parent: Node | null): void;
declare function assertNotInAttributes(functionName: string): void;
declare function assertNotInSkip(functionName: string): void;
declare function assertInAttributes(functionName: string): void;
declare function assertVirtualAttributesClosed(): void;
declare function assertCloseMatchesOpenTag(currentNameOrCtor: NameOrCtorDef, nameOrCtor: NameOrCtorDef): void;
declare function assertNoChildrenDeclaredYet(functionName: string, previousNode: Node | null): void;
declare function assertPatchElementNoExtras(maybeStartNode: Node | null, maybeCurrentNode: Node | null, expectedNextNode: Node | null, expectedPrevNode: Node | null): void;
declare function updatePatchContext(newContext: {} | null): void;
declare function setInAttributes(value: boolean): boolean;
declare function setInSkip(value: boolean): boolean;
export { assert, assertInPatch, assertNoUnclosedTags, assertNotInAttributes, assertInAttributes, assertCloseMatchesOpenTag, assertVirtualAttributesClosed, assertNoChildrenDeclaredYet, assertNotInSkip, assertPatchElementNoExtras, assertPatchOuterHasParentNode, setInAttributes, setInSkip, updatePatchContext };