How to use the green.run_syn function in green

from numpy import loadtxt
    from string import rjust
    
    green_path=home+project_name+'/GFs/'
    station_file=home+project_name+'/data/station_info/'+station_file
    fault_file=home+project_name+'/data/model_info/'+fault_name
    logpath=home+project_name+'/logs/'
    #Time for log file
    now=datetime.datetime.now()
    now=now.strftime('%b-%d-%H%M')
    #First read fault model file
    source=loadtxt(fault_file,ndmin=2)
    #Now compute synthetics please, one sub fault at a time
    for k in range(hot_start,source.shape[0]):
        subfault=rjust(str(k+1),4,'0')
        log=green.run_syn(home,project_name,source[k,:],station_file,green_path,model_name,integrate,static,
                subfault,coord_type,time_epi,beta)
        f=open(logpath+'make_synth.'+now+'.log','a')
        f.write(log)
        f.close()