Currently, the shell does not allow to construct and send wildcard reads for all tables (table_id = 0, spec).
Examples:
P4Runtime sh >>> te = TableEntry()
Please provide name for table
P4Runtime sh >>> te = table_entry[""]
table '' does not exist
P4Runtime sh >>> te = table_entry[]
File "<ipython-input-11-f60488650eb6>", line 1
te = table_entry[]
^
SyntaxError: invalid syntax