# otp.ShowFunctionList

### *class* ShowFunctionList(symbol=None, tick_type=None, start=utils.adaptive, end=utils.adaptive, query_parameters=None, \*\*kwargs)

Bases: [`Source`](https://docs.pip.distribution.sol.onetick.com/api/source/root.html.md#onetick.py.Source)

Returns the list of functions and their parameter.

One tick is generated for each parameter of each function.

If a function does not have parameters, only one tick is propagated with field **HAS_PARAMETERS** set to false.
In this case, numeric fields that are describing parameters, take the value 0
(except for PARAMETER_TYPE, which takes -1) and string fields take empty string.

* **Parameters:**
  * **symbol** ([*str*](https://docs.pip.distribution.sol.onetick.com/api/operation/str/root.html.md#onetick.py.Operation.str)) -- Bound symbol on the node of the graph.
    Not set by default -- the value from [`otp.run`](https://docs.pip.distribution.sol.onetick.com/api/run.html.md#onetick.py.run) will be used.
  * **tick_type** ([*str*](https://docs.pip.distribution.sol.onetick.com/api/operation/str/root.html.md#onetick.py.Operation.str)) -- Tick type set on the node of the graph.
    Not set by default.
  * **start** ([`datetime.datetime`](https://docs.python.org/3/library/datetime.html#datetime.datetime), [`otp.datetime`](https://docs.pip.distribution.sol.onetick.com/api/datetime/dt.html.md#onetick.py.datetime)) -- Time interval from which the data should be taken.
    Not set by default -- the values from [`otp.run`](https://docs.pip.distribution.sol.onetick.com/api/run.html.md#onetick.py.run) will be used.
  * **end** ([`datetime.datetime`](https://docs.python.org/3/library/datetime.html#datetime.datetime), [`otp.datetime`](https://docs.pip.distribution.sol.onetick.com/api/datetime/dt.html.md#onetick.py.datetime)) -- Time interval from which the data should be taken.
    Not set by default -- the values from [`otp.run`](https://docs.pip.distribution.sol.onetick.com/api/run.html.md#onetick.py.run) will be used.
  * **query_parameters** ([`otp.QueryParameters`](https://docs.pip.distribution.sol.onetick.com/api/misc/query_parameters.html.md#onetick.py.QueryParameters)) -- Additional query properties to be set in the resulting .otq file.
    They will be used if they are not overridden by other parameters or in [`otp.run`](https://docs.pip.distribution.sol.onetick.com/api/run.html.md#onetick.py.run).

### Examples

Get the list of all OneTick functions:

```pycon
>>> data = otp.ShowFunctionList()
>>> otp.run(data, symbols='LOCAL::')
          Time                   FUNCTION_NAME PARAMETER_NAME  ... PARAMETER_TYPE_NAME  ...
0   2003-12-01                             ABS         NUMBER  ...             DECIMAL  ...
1   2003-12-01      DYNAMIC_TICK.GET_TIMESTAMP                 ...                      ...
2   2003-12-01               AS_YYYYMMDDHHMMSS           TIME  ...         TIME_MSEC64  ...
3   2003-12-01               AS_YYYYMMDDHHMMSS       TIMEZONE  ...              STRING  ...
4   2003-12-01                        NSECTIME           TIME  ...         TIME_NSEC64  ...
..         ...                             ...            ...  ...                 ...  ...
```