import type { LocalExtraParameterValue } from './types/AdProps';
/**
 * Converts a record of string-based extra parameters into an array of `{ key, value }` objects.
 * Used for sending extra parameters to the native SDK.
 *
 * @param input - An optional map of key-value string pairs (or null values).
 * @returns An array of `{ key, value }` objects. Returns an empty array if input is undefined.
 */
export declare const makeExtraParametersArray: (input?: Record<string, string | null>) => {
    key: string;
    value: string | null;
}[];
type LocalExtraParameterType = 'str' | 'bool';
type LocalExtraParameterValueMap = {
    str: string | null;
    bool: boolean | null;
};
/**
 * Converts a map of local extra parameters into a filtered array of `{ key, value }` pairs.
 * Only values matching the specified type (`'str'` or `'bool'`) are included.
 *
 * @param input - A record of local extra parameters (string, boolean, or null).
 * @param type - The expected type of each value: `'str'` for strings, `'bool'` for booleans.
 * @returns A filtered array of `{ key, value }` objects, cast to the specified type.
 */
export declare const makeLocalExtraParametersArray: <T extends LocalExtraParameterType>(input: Record<string, LocalExtraParameterValue> | undefined, type: T) => {
    key: string;
    value: LocalExtraParameterValueMap[T];
}[];
export {};
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