`object
method create_proxy_session :
Http_client.http_call ->
Http_client.http_options Pervasives.ref ->
Http_client.auth_session option
method create_session :
Http_client.http_call ->
Http_client.http_options Pervasives.ref ->
Http_client.auth_session option
method skip_challenge : string option
method skip_challenge_session :
Http_client.http_call ->
Http_client.http_options Pervasives.ref ->
Http_client.auth_session option
end`