import { TypedExpression } from "@feedloop/expression-parser";
import { ColumnTypes } from "./registerColumn";
export declare const allowedTypes: Set<ColumnTypes>;
type FormulaDefinition = {
    expression: TypedExpression;
    type: ColumnTypes;
    evaluation: "eager" | "lazy";
};
export declare const defaultExpression: TypedExpression;
export declare const definition: FormulaDefinition;
export {};
