# Functions
GetFormHTML can be used on pages where empty form is enough to verify that the client is not a "robot".
New accepts the google's recaptcha secret key and returns a middleware that verifies the request by sending a response to the google's API(V2-latest).
SiteVerify accepts context and the secret key(https://www.google.com/recaptcha) and returns the google's recaptcha response, if `response.Success` is true then validation passed.
# Variables
Client is the default `net/http#Client` instance which is used to send requests to the Google API.