         
         Alamofire.manager.request(.POST, PlaidURL.connect, parameters: parameters, encoding: .JSON).responseJSON { (request, response, data, error) in
             let responseObject = data! as [String: AnyObject]
-            completionHandler(response: response!, responseData: responseObject)
+            callBack(response: response!, responseData: responseObject)
         }
     }
     
     
-    static func submitMFAResponse(response: String, institution: PlaidInstitution, accessToken: String, completionHandler: (response: NSHTTPURLResponse, responseData: [String: AnyObject]) -> ()) {
+    static func submitMFAResponse(response: String, institution: PlaidInstitution, accessToken: String, callBack: (response: NSHTTPURLResponse, responseData: [String: AnyObject]) -> ()) {
                             
         let parameters: [String: AnyObject] = ["client_id" : clientIDToken,
                                                   "secret" : secretToken,

                            
        Alamofire.manager.request(.POST, PlaidURL.step, parameters: parameters, encoding: .JSON).responseJSON { (request, response, data, error) in
            if let responseObject = data as? [String: AnyObject] {
                completionHandler(response: response!, responseData: responseObject)
            }
        }
    }
    
    
    static func downloadAccountData(#accessToken: String, account: String, pending: Bool, fromDate: NSDate?, toDate: NSDate?, success: (response: NSHTTPURLResponse, account: PlaidAccount, plaidTransactions: [PlaidTransaction]) -> ()) {
        var options: [String: AnyObject] = ["pending" : pending,
                                            "account" : account]
        if let fromDate = fromDate {

    
    
    
    static func loginToInstitution(institution: PlaidInstitution, username: String, password: String, pin: String, email: String, callBack: (response: NSHTTPURLResponse, responseData: [String: AnyObject]) -> ()) {
        let credentials = ["username" : username,
                           "password" : password,
                                "pin" : pin]
