def model leakage_ion_channel as
   def import using "Noble62_units.xml" for
      unit mV using unit mV;
      unit ms using unit ms;
      unit microS using unit microS;
      unit nanoA using unit nanoA;
   enddef;
   def comp leakage_channel as
      var V: mV {pub: in};
      var g_L: microS {init: 75};
      var E_L: mV {init: -60};
      var i_L: nanoA {pub: out};
      i_L = g_L*(V-E_L);
   enddef;
enddef;