import { VariableDefinition, ExternalVariableDefinition } from '@perses-dev/core';
import { VariableStoreStateMap } from '@perses-dev/plugin-system';
export declare function checkSavedDefaultVariableStatus(definitions: VariableDefinition[], varState: VariableStoreStateMap): {
    modifiedVariableNames: string[];
    isSavedVariableModified: boolean;
};
/**
 * Merge the different kind of variable definition into a list without any duplicates (same name).
 * Respects the order of priority explained in {@link forEachVariableDefinition}
 * @param locals
 * @param externals
 */
export declare function mergeVariableDefinitions(locals: VariableDefinition[], externals: ExternalVariableDefinition[]): VariableDefinition[];
/**
 * Find a definition by its name.
 * Respects the order of priority explained in {@link forEachVariableDefinition}
 * @param name
 * @param localDefinitions
 * @param externalDefinitions
 */
export declare function findVariableDefinitionByName(name: string, localDefinitions: VariableDefinition[], externalDefinitions: ExternalVariableDefinition[]): VariableDefinition | undefined;
/**
 * Loop on local and external variable definitions, respecting the order of priority:
 * - local var defs override external var defs of same name
 * - each external var defs override the external var defs coming after.
 * @param locals
 * @param externals
 * @param callbackFn
 */
export declare function forEachVariableDefinition(locals: VariableDefinition[], externals: ExternalVariableDefinition[], callbackFn: (varDef: VariableDefinition, name: string, source?: string) => void): void;
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