def update_record_field(table, sys_id, field, value):
 client = _get_client()
 client.table = table
 response = client.update({field: value}, sys_id)
 return response

def update_record_field ( table , sys_id , field , value ) : client = _get_client ( ) client . table = table response = client . update ( { field : value } , sys_id ) return response
update the value of a records field in a servicenow table .