SOAP webservice: SoapClient::__getFunctions

[Alessandro]

Hallo,
i got this array from SoapClient::__getFunctions:

array(38) {
  [0]=>
  string(78) "Adv2DepositResultMsg Adv2Deposit(Adv2DepositRequestMsg $Adv2DepositRequestMsg)"
  [1]=>
  string(110) "QueryInvoicePaymentResultMsg QueryInvoicePayment(QueryInvoicePaymentRequestMsg $QueryInvoicePaymentRequestMsg)"
  [2]=>
  string(94) "QueryPaymentLogResultMsg QueryPaymentLog(QueryPaymentLogRequestMsg $QueryPaymentLogRequestMsg)"
  [3]=>
  string(82) "QueryInvoiceResultMsg QueryInvoice(QueryInvoiceRequestMsg $QueryInvoiceRequestMsg)"
  [4]=>
  string(62) "PaymentResultMsg Payment(PaymentRequestMsg $PaymentRequestMsg)"
  [5]=>
  string(94) "PaymentRollBackResultMsg PaymentRollBack(PaymentRollBackRequestMsg $PaymentRollBackRequestMsg)"
  [6]=>
  string(58) "RefundResultMsg Refund(RefundRequestMsg $RefundRequestMsg)"
  [7]=>
  string(66) "PANotifyResultMsg PANotify(PANotifyRequestMsg $PANotifyRequestMsg)"
  [8]=>
  string(66) "PACancelResultMsg PACancel(PACancelRequestMsg $PACancelRequestMsg)"
  [9]=>
  string(66) "WriteOffResultMsg WriteOff(WriteOffRequestMsg $WriteOffRequestMsg)"
.....
.....
.....
.....

The web services developer have to give me the documentation of the functions?
In the 0 array index, is the Adv2Deposit() the function?
Any help will be appreciated.
Thank you.