export declare const SONAMU_ENVIRONMENTS: readonly ["test", "development", "staging", "production"];
export type SonamuEnvironment = (typeof SONAMU_ENVIRONMENTS)[number];
export type EnvironmentSnapshot = Record<string, string>;
export type EnvironmentSnapshots = Record<SonamuEnvironment, EnvironmentSnapshot>;
export declare function isSonamuEnvironment(value: string | undefined): value is SonamuEnvironment;
export declare function getSonamuEnvironment(env?: NodeJS.ProcessEnv): SonamuEnvironment;
export declare function readEnvironmentSnapshot(rootPath: string, environment: SonamuEnvironment, baseEnv?: NodeJS.ProcessEnv): EnvironmentSnapshot;
export declare function readAllEnvironmentSnapshots(rootPath: string, baseEnv?: NodeJS.ProcessEnv): EnvironmentSnapshots;
export declare function applyCurrentSnapshotToProcessEnv(rootPath: string): EnvironmentSnapshot;
export declare function isDevelopmentEnvironment(): boolean;
export declare function isStagingEnvironment(): boolean;
export declare function isProductionEnvironment(): boolean;
export declare function isTestEnvironment(): boolean;
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