export declare const PROJECT_ENV_STANDARD_KEYS: {
    readonly funnelSdkPublishableKey: "NEXT_PUBLIC_FUNNEL_PUBLISHABLE_KEY";
    readonly funnelId: "NEXT_PUBLIC_FUNNEL_ID";
    readonly funnelVersionId: "NEXT_PUBLIC_FUNNEL_VERSION_ID";
    readonly projectId: "NEXT_PUBLIC_PROJECT_ID";
    readonly posthogProjectApiKey: "NEXT_PUBLIC_POSTHOG_PROJECT_API_KEY";
    readonly stripeEnabled: "STRIPE_ENABLED";
    readonly stripeActiveMode: "NEXT_PUBLIC_STRIPE_ACTIVE_MODE";
    readonly stripeTestPublishableKey: "NEXT_PUBLIC_STRIPE_TEST_PUBLISHABLE_KEY";
    readonly stripeTestSecretKey: "STRIPE_TEST_SECRET_KEY";
    readonly stripeTestWebhookSecret: "STRIPE_TEST_WEBHOOK_SECRET";
    readonly stripeLivePublishableKey: "NEXT_PUBLIC_STRIPE_LIVE_PUBLISHABLE_KEY";
    readonly stripeLiveSecretKey: "STRIPE_LIVE_SECRET_KEY";
    readonly stripeLiveWebhookSecret: "STRIPE_LIVE_WEBHOOK_SECRET";
    readonly funnelIosDeepLink: "NEXT_PUBLIC_FUNNEL_IOS_DEEP_LINK";
    readonly funnelAndroidPlayStoreUrl: "NEXT_PUBLIC_ANDROID_PLAY_STORE_URL";
    readonly funnelUniversalLink: "NEXT_PUBLIC_FUNNEL_UNIVERSAL_LINK";
    readonly funnelAppStoreId: "NEXT_PUBLIC_FUNNEL_APP_STORE_ID";
    readonly funnelGoogleStoreId: "NEXT_PUBLIC_FUNNEL_GOOGLE_STORE_ID";
    readonly funnelTimezone: "NEXT_PUBLIC_FUNNEL_TIMEZONE";
    readonly funnelFaviconUrl: "NEXT_PUBLIC_FUNNEL_FAVICON_URL";
    readonly funnelPageTitle: "NEXT_PUBLIC_FUNNEL_PAGE_TITLE";
    readonly funnelPageDescription: "NEXT_PUBLIC_FUNNEL_PAGE_DESCRIPTION";
    readonly funnelPagePreviewImageUrl: "NEXT_PUBLIC_FUNNEL_PAGE_PREVIEW_IMAGE_URL";
    readonly funnelCompanyName: "NEXT_PUBLIC_FUNNEL_COMPANY_NAME";
    readonly funnelCompanyAddress: "NEXT_PUBLIC_FUNNEL_COMPANY_ADDRESS";
    readonly funnelCompanyCountry: "NEXT_PUBLIC_FUNNEL_COMPANY_COUNTRY";
    readonly funnelPrivacyUrl: "NEXT_PUBLIC_FUNNEL_PRIVACY_URL";
    readonly funnelTermsUrl: "NEXT_PUBLIC_FUNNEL_TERMS_URL";
    readonly funnelCustomDomain: "FUNNEL_CUSTOM_DOMAIN";
    readonly funnelSupportEmail: "NEXT_PUBLIC_FUNNEL_SUPPORT_EMAIL";
    readonly rudderstackEnabled: "NEXT_PUBLIC_RUDDERSTACK_ENABLED";
    readonly rudderstackDataPlaneUrl: "NEXT_PUBLIC_RUDDERSTACK_DATA_PLANE_URL";
    readonly rudderstackWriteKey: "NEXT_PUBLIC_RUDDERSTACK_WRITE_KEY";
    readonly rudderstackIncludeTestEvents: "NEXT_PUBLIC_RUDDERSTACK_INCLUDE_TEST_EVENTS";
    readonly metaPixelEnabled: "NEXT_PUBLIC_META_PIXEL_ENABLED";
    readonly metaPixelId: "NEXT_PUBLIC_META_PIXEL_ID";
    readonly metaConversionsAccessToken: "META_CONVERSIONS_ACCESS_TOKEN";
    readonly metaTestEventCode: "META_TEST_EVENT_CODE";
    readonly googleTagEnabled: "NEXT_PUBLIC_GOOGLE_TAG_ENABLED";
    readonly googleAnalyticsId: "NEXT_PUBLIC_GOOGLE_ANALYTICS_ID";
    readonly googleTagManagerId: "NEXT_PUBLIC_GOOGLE_TAG_MANAGER_ID";
    readonly googleTagEventTarget: "NEXT_PUBLIC_GOOGLE_TAG_EVENT_TARGET";
    readonly googleTagLeadSendTo: "NEXT_PUBLIC_GOOGLE_TAG_LEAD_SEND_TO";
    readonly googleTagLeadValue: "NEXT_PUBLIC_GOOGLE_TAG_LEAD_VALUE";
    readonly googleTagPurchaseSendTo: "NEXT_PUBLIC_GOOGLE_TAG_PURCHASE_SEND_TO";
};
export type ProjectEnvStandardKey = keyof typeof PROJECT_ENV_STANDARD_KEYS;
export type ProjectEnvStandardValues = Record<ProjectEnvStandardKey, string>;
export type ProjectEnvVariableLike = {
    key: string;
    value: string | null | undefined;
};
export type ProjectEnvVariableInputLike = {
    key: string;
    value: string;
};
export interface ParsedProjectEnvVariables {
    envMap: Map<string, string>;
    standard: ProjectEnvStandardValues;
}
export declare const normalizeProjectEnvValue: (value: string | null | undefined) => string;
export declare const buildProjectEnvMap: (variables: readonly ProjectEnvVariableLike[]) => Map<string, string>;
export declare const getProjectEnvValue: (envMap: ReadonlyMap<string, string>, key: string, options?: {
    requireNonEmpty?: boolean;
}) => string;
export declare const parseProjectEnvVariables: (variables: readonly ProjectEnvVariableLike[]) => ParsedProjectEnvVariables;
export declare const normalizeProjectEnvVariables: (variables: readonly ProjectEnvVariableInputLike[]) => ProjectEnvVariableInputLike[];