code: async function isRunning(address) {
  	try {
  		await call(address, {
  			url: '/gateway',
  			timeout: 6e5, // 10 minutes
  		})
  		return true
  	} catch (e) {
  		return false
  	}
  }
docs: isRunning returns true if a successful call can be to /gateway using the address provided in `address`.  Note that this call does not check whether the siad process is still running, it only checks if a Sia API is reachable.