#for ##for_block##
    a = ##a##, b = ##b##, size=##for_block_SIZE##, id = ##for_block_IDX##
#endfor

#for ##for_block##; sep=","
    a = ##a##, top-lvl-value = ##value##
#endfor

#for ##for_block##
line1
line2
#endfor

#for ##nested_for_block##; sep=","
	a = ##a##
    #for ##s##; sep=";"
		a = ##a##
    #endfor
#endfor