import { type MapFunction } from '../value/map';
import { type Maybe } from '../value/maybe.type';
import { type BoundNumberFunctionConfig } from './bound';
import { type NumberPrecision, type RoundNumberToStepFunctionInput } from './round';
export type TransformNumberFunctionConfig<N extends number = number> = {
    /**
     * (Optional) transform function for the input. It is processed first.
     */
    transform?: TransformNumberFunction<N>;
    /**
     * (Optional) step rounding.
     */
    roundToStep?: RoundNumberToStepFunctionInput;
    /**
     * (Optional) decimal precision to retain
     */
    precision?: NumberPrecision;
    /**
     * (Optional bounds to apply to the value)
     */
    bounds?: BoundNumberFunctionConfig<N>;
};
export interface TransformNumberFunctionConfigRef<N extends number = number> {
    transform: TransformNumberFunctionConfig<N>;
}
export type TransformNumberFunction<N extends number = number> = MapFunction<N, N>;
export type TransformNumberFunctionConfigInput<S extends number = number> = TransformNumberFunctionConfig<S> | TransformNumberFunction<S>;
/**
 * Normalizes a {@link TransformNumberFunctionConfigInput} to a {@link TransformNumberFunctionConfig}.
 *
 * If a function is provided, wraps it as the `transform` field. Returns undefined for undefined input.
 *
 * @param config - A config object, a transform function, or undefined
 * @returns The normalized config, or undefined
 */
export declare function transformNumberFunctionConfig<S extends number = number>(config?: TransformNumberFunctionConfigInput<S>): Maybe<TransformNumberFunctionConfig<S>>;
/**
 * Creates a composite number transform function from a {@link TransformNumberFunctionConfig}.
 *
 * Chains the configured operations in order: custom transform, step rounding, precision cut, then bounds clamping.
 *
 * @param config - Configuration with optional transform, roundToStep, precision, and bounds
 * @returns A single function that applies all configured transformations in sequence
 */
export declare function transformNumberFunction<N extends number = number>(config: TransformNumberFunctionConfig<N>): TransformNumberFunction<N>;