Trouble with PyRFC Table Parameter

When I run this program:

from pyrfc import Connection

import sys

def main():

    conn = Connection(user='AUSER', passwd='VerySecure', ashost='10.1.2.3', sysnr='00', client='110')

    result = conn.call('RFC_READ_TEXT', TEXT_LINES=[dict( MANDT=u'110',TDOBJECT=u'VBBK', \

                                                                              TDNAME=u'0000110028',TDID=u'0001',TDSPRAS=u'E', \

                                                                              COUNTER=u'000',TDFORMAT=u'*',TDLINE=u'')])

    lines = result['TEXT_LINES']

if __name__ == '__main__':

    main()

I expect to see 5 lines of text in the TDLINE field (just like in SE37), I only see the one line I am passing with blank TDLINE

What am I doing wrong ?

Thanks, Ron