import { Variables } from "expry";
import { CondSchema, ItemSchema } from "../../types/schema";
import { Position } from "../../types/position";
export declare const CondSchemaUtils: {
    is(schema: ItemSchema): schema is CondSchema;
    into(schema: CondSchema, variables: Variables): Position | null;
    next(schema: CondSchema, position: Position): Position | null;
    at(schema: CondSchema, position: Position): ItemSchema;
};
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