def external_session_url(email, chrome, url, integrator_id, client_id)
      options = { :body => {
        :Email => email,
        :Chrome => chrome,
        :Url => url,
        :IntegratorID => integrator_id,
        :ClientID => client_id }.to_json }
      response = put("/externalsession.json", options)
      Hashie::Mash.new(response)
    end
def external_session_url(email, chrome, url, integrator_id, client_id)
      options = { :body => {
        :Email => email,
        :Chrome => chrome,
        :Url => url,
        :IntegratorID => integrator_id,
        :ClientID => client_id }.to_json }
      response = put("/externalsession.json", options)
      Hashie::Mash.new(response)
    end
Get a URL which initiates a new external session for the user with the
 given email.
 Full details: http://www.campaignmonitor.com/api/account/#single_sign_on

 email         - The email address of the Campaign Monitor user for whom
                 the login session should be created.
 chrome        - Which 'chrome' to display - Must be either "all",
                 "tabs", or "none".
 url           - The URL to display once logged in. e.g. "/subscribers/"
 integrator_id - The integrator ID. You need to contact Campaign Monitor
                 support to get an integrator ID.
 client_id     - The Client ID of the client which should be active once
                 logged in to the Campaign Monitor account.

 Returns An object containing a single field SessionUrl which represents
 the URL to initiate the external Campaign Monitor session.