Make sure you've gone through Manual Waits before working on any functions in this API reference.
Until expectation functions allows tests to wait for certain expectation to meet. If expectation is not met within the allowed time a timeout error is thrown and test fails. Please make sure you've learned Customize the maximum wait time of until-expectation functions. Every function will list the type of timeout it uses to help you decide if a customization is needed.
Read on all available function in this part of API reference.