code: public SignatureRequestList getSignatureRequests() throws HelloSignException {
          return new SignatureRequestList(httpClient.withAuth(auth).get(BASE_URI + SIGNATURE_REQUEST_LIST_URI).asJson());
      }
docs: Retrieves the current user's signature requests. The resulting object
  represents a paged query result. The page information can be retrieved on
  from the ListInfo object on the SignatureRequestList.
  
  @return SignatureRequestList
  @throws HelloSignException thrown if there's a problem processing the
  HTTP request or the JSON response.