httpstan.services.arguments

Lookup arguments and argument default values for stan::services functions.

Module Contents

Functions

_pythonize_cmdstan_type(type_name: str) → type	Turn CmdStan C++ type name into Python type.
lookup_default(method: Method, arg: str) → Union[float, int]	Fetch default for named argument in a stan:services function.
function_arguments(function_name: str, services_module: types.ModuleType) → List[str]	Get function arguments for stan::services function_name.

Attributes

Method
DEFAULTS_LOOKUP

httpstan.services.arguments.Method

httpstan.services.arguments.DEFAULTS_LOOKUP

httpstan.services.arguments._pythonize_cmdstan_type(type_name: str) → type

Turn CmdStan C++ type name into Python type.

For example, “double” becomes float (the type).

httpstan.services.arguments.lookup_default(method: Method, arg: str) → Union[float, int]

Fetch default for named argument in a stan:services function.

Uses defaults from CmdStan. The file cmdstan-help-all.json is generated with the script scripts/parse_cmdstan_help.py from the output of running a CmdStan binary with the argument help-all (e.g., `` examples/bernoulli/bernoulli help-all``)

httpstan.services.arguments.function_arguments(function_name: str, services_module: types.ModuleType) → List[str]

Get function arguments for stan::services function_name.

This function parses a function’s docstring to get argument names. This is an inferior method to using inspect.Signature.from_callable(function). Unfortunately, pybind11 does not support this use of inspect.

A compiled services_module is required for the lookup. Only simple function arguments are returned. For example, callback writers and var_context arguments are dropped.

Parameters

• function_name – Name of the function.

• services_module (module) – Compiled model-specific services extension module.

Returns

Argument names for function_name.