import { SimplePool } from 'nostr-tools'

/**
 * Alias for SimplePool with typed sub method from nostr-tools definitions.
 * Using the existing type avoids compatibility issues while keeping explicit intent.
 */
export interface SimplePoolWithSub extends SimplePool {
  sub: SimplePool['sub']
}

export function hasSubMethod(pool: SimplePool): pool is SimplePoolWithSub {
  return typeof (pool as SimplePoolWithSub).sub === 'function'
}