import type { MethodCode, MethodParams, MethodRegistry } from "../../types";
export declare const CALCULATION_METHODS: MethodRegistry;
export declare const METHOD_NAMES: Record<MethodCode, string>;
export declare const METHOD_DESCRIPTIONS: Record<MethodCode, string>;
export declare function getMethodParams(method: MethodCode): MethodParams;
export declare function getMethodName(method: MethodCode): string;
export declare function getMethodDescription(method: MethodCode): string;
export declare function isValidMethod(method: string): method is MethodCode;
export declare function getAllMethods(): MethodCode[];
export declare function getMethodsByRegion(region: string): MethodCode[];
export declare function parseAngleOrInterval(value: number | string): {
    type: "angle" | "interval";
    value: number;
};
export declare function getNightPortions(method: MethodCode): {
    fajr: number;
    isha: number;
};
export declare function createCustomMethod(params: Partial<MethodParams>): MethodParams;
export declare function validateMethodParams(params: MethodParams): {
    isValid: boolean;
    errors: string[];
};
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