FromTransport creates a new HTTP client wrapping base with RateLimitedHTTPTransport.

NewLimitedCall creates new LimitedCall which allows a function to be called at most once per the specified internval.

NewRateLimitedHTTPTransport make a new rate limited http transport.

LimitedCall allows to rate-limit recurring function calls.

RateLimitedHTTPTransport is a http.RoundTripper that rate limits the requests, waiting at least callInterval between requests.