import expressSession, {
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MemoryStore as ExpressMemoryStore,
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} from "express-session";
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interface MemoryStoreOptions {
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/**
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* Define how long MemoryStore will check for expired.
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* The period is in ms. The automatic check is disabled by default!
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* Not setting this is kind of silly, since that's the whole purpose of
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* this lib.
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*/
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checkPeriod?: number;
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/**
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* The maximum size of the cache, checked by applying the length
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* function to all values in the cache. It defaults to `Infinity`.
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*/
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max?: number;
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/**
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* Session TTL (expiration) in milliseconds.
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* Defaults to `session.maxAge` (if set), or one day.
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*/
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ttl?: number | ((options: any, sess: any, sessionId: any) => number);
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/**
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* Function that is called on sessions when they are dropped from the
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* cache. This can be handy if you want to close file descriptors or do
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* other cleanup tasks when sessions are no longer accessible. It's
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* called before actually removing the item from the internal cache, so
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* if you want to immediately put it back in, you'll have to do that in
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* a `nextTick` or `setTimeout` callback or it won't do anything.
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*/
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dispose?: (key: any, value: any) => void;
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/**
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* By default, if you set a `maxAge`, it'll only actually pull stale
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* items out of the cache when you `get(key)`. (That is, it's not
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* pre-emptively doing a setTimeout or anything.) If you set
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* `stale:true`, it'll return the stale value before deleting it. If
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* you don't set this, then it'll return undefined when you try to get
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* a stale entry, as if it had already been deleted.
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*/
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stale?: boolean;
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/**
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* By default, if you set a `dispose()` method, then it'll be called
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* whenever a `set()` operation overwrites an existing key. If you set
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* this option, `dispose()` will only be called when a key falls out of
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* the cache, not when it is overwritten.
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*/
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noDisposeOnSet?: boolean;
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/**
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* An object compatible with Javascript's JSON to override the
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* serializer used.
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*/
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serializer?: {
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stringify: (arg: object) => string;
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parse: (str: string) => object;
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};
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}
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declare class MemoryStore extends ExpressMemoryStore {
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constructor(options: MemoryStoreOptions);
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/** method to start the automatic check for expired. */
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startInterval(): void;
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/** method to clear the automatic check for expired. */
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stopInterval(): void;
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/** use to manually remove only the expired entries from the store. */
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prune(): void;
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}
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/**
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* Sample usage:
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* ```
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* import session from 'express-session';
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* import createMemoryStore from 'memorystore';
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* const MemoryStore = createMemoryStore(session);
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* ...
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* app.use(session({ store: new MemoryStore({ ...options }) }));
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* ```
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*/
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declare function createMemoryStore(
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session: typeof expressSession
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): typeof MemoryStore;
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export = createMemoryStore;
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