docs: def GetAlias(session=None):
          """Return specified alias or if none the alias associated with the provided credentials.
  
          >>> clc.v2.Account.GetAlias()
          u'BTDI'
          """
          if session is not None:
              return session['alias']
  
          if not clc.ALIAS:  clc.v2.API._Login()
          return(clc.ALIAS)