MellonGroupPOS Constructor
Parameters
- ArbitransUser
 - string
 
User Name provided by Arbitrans
- ArbitransKey
 - string
 
Key provided by Arbitrans
- nsp
 - int
 
	The nsp provider 
Possible Values: 
1: JCC, Attica Bank, Pancreta 
2: Nexi 
3: NBG (National Bank of Greece) 
4: Worldline 
 
- Test_env
 - bool
 
	Work in the Test environment true/false. This value is ignored by the dll if the license is TRIAL. 
In Trial Version, you will always work in the Test Environment of myDATA. 
 MellonGroupPOS mlg = new MellonGroupPOS("Arbitrans User", "Arbitrans Key", 1, false);
 								
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