# Auto-generated. Do not edit.
from opendp._convert import *
from opendp._lib import *
from opendp.mod import *
from opendp.typing import *
from opendp.core import *
__all__ = [
"make_basic_composition",
"make_chain_mt",
"make_chain_tm",
"make_chain_tt",
"make_fix_delta",
"make_population_amplification",
"make_pureDP_to_fixed_approxDP",
"make_pureDP_to_zCDP",
"make_zCDP_to_approxDP"
]
[docs]
def make_basic_composition(
measurements: Any
) -> Measurement:
"""Construct the DP composition [`measurement0`, `measurement1`, ...].
Returns a Measurement that when invoked, computes `[measurement0(x), measurement1(x), ...]`
All metrics and domains must be equivalent, except for the output domain.
[make_basic_composition in Rust documentation.](https://docs.rs/opendp/latest/opendp/combinators/fn.make_basic_composition.html)
:param measurements: A vector of Measurements to compose.
:type measurements: Any
:rtype: Measurement
:raises TypeError: if an argument's type differs from the expected type
:raises UnknownTypeError: if a type argument fails to parse
:raises OpenDPException: packaged error from the core OpenDP library
"""
assert_features("contrib")
# No type arguments to standardize.
# Convert arguments to c types.
measurements = py_to_c(measurements, c_type=AnyObjectPtr, type_name=RuntimeType(origin='Vec', args=[AnyMeasurementPtr]))
# Call library function.
function = lib.opendp_combinators__make_basic_composition
function.argtypes = [AnyObjectPtr]
function.restype = FfiResult
return c_to_py(unwrap(function(measurements), Measurement))
[docs]
def make_chain_mt(
measurement1: Measurement,
transformation0: Transformation
) -> Measurement:
"""Construct the functional composition (`measurement1` ○ `transformation0`).
Returns a Measurement that when invoked, computes `measurement1(transformation0(x))`.
[make_chain_mt in Rust documentation.](https://docs.rs/opendp/latest/opendp/combinators/fn.make_chain_mt.html)
:param measurement1: outer mechanism
:type measurement1: Measurement
:param transformation0: inner transformation
:type transformation0: Transformation
:rtype: Measurement
:raises TypeError: if an argument's type differs from the expected type
:raises UnknownTypeError: if a type argument fails to parse
:raises OpenDPException: packaged error from the core OpenDP library
"""
assert_features("contrib")
# No type arguments to standardize.
# Convert arguments to c types.
measurement1 = py_to_c(measurement1, c_type=Measurement, type_name=None)
transformation0 = py_to_c(transformation0, c_type=Transformation, type_name=None)
# Call library function.
function = lib.opendp_combinators__make_chain_mt
function.argtypes = [Measurement, Transformation]
function.restype = FfiResult
return c_to_py(unwrap(function(measurement1, transformation0), Measurement))
[docs]
def make_chain_tm(
transformation1: Transformation,
measurement0: Measurement
) -> Measurement:
"""Construct the functional composition (`transformation1` ○ `measurement0`).
Returns a Measurement that when invoked, computes `transformation1(measurement0(x))`.
Used to represent non-interactive postprocessing.
[make_chain_tm in Rust documentation.](https://docs.rs/opendp/latest/opendp/combinators/fn.make_chain_tm.html)
:param transformation1: outer postprocessing transformation
:type transformation1: Transformation
:param measurement0: inner measurement/mechanism
:type measurement0: Measurement
:rtype: Measurement
:raises TypeError: if an argument's type differs from the expected type
:raises UnknownTypeError: if a type argument fails to parse
:raises OpenDPException: packaged error from the core OpenDP library
"""
assert_features("contrib")
# No type arguments to standardize.
# Convert arguments to c types.
transformation1 = py_to_c(transformation1, c_type=Transformation, type_name=None)
measurement0 = py_to_c(measurement0, c_type=Measurement, type_name=None)
# Call library function.
function = lib.opendp_combinators__make_chain_tm
function.argtypes = [Transformation, Measurement]
function.restype = FfiResult
return c_to_py(unwrap(function(transformation1, measurement0), Measurement))
[docs]
def make_chain_tt(
transformation1: Transformation,
transformation0: Transformation
) -> Transformation:
"""Construct the functional composition (`transformation1` ○ `transformation0`).
Returns a Transformation that when invoked, computes `transformation1(transformation0(x))`.
[make_chain_tt in Rust documentation.](https://docs.rs/opendp/latest/opendp/combinators/fn.make_chain_tt.html)
:param transformation1: outer transformation
:type transformation1: Transformation
:param transformation0: inner transformation
:type transformation0: Transformation
:rtype: Transformation
:raises TypeError: if an argument's type differs from the expected type
:raises UnknownTypeError: if a type argument fails to parse
:raises OpenDPException: packaged error from the core OpenDP library
"""
assert_features("contrib")
# No type arguments to standardize.
# Convert arguments to c types.
transformation1 = py_to_c(transformation1, c_type=Transformation, type_name=None)
transformation0 = py_to_c(transformation0, c_type=Transformation, type_name=None)
# Call library function.
function = lib.opendp_combinators__make_chain_tt
function.argtypes = [Transformation, Transformation]
function.restype = FfiResult
return c_to_py(unwrap(function(transformation1, transformation0), Transformation))
[docs]
def make_fix_delta(
measurement: Measurement,
delta: Any
) -> Measurement:
"""Fix the delta parameter in the privacy map of a `measurement` with a SmoothedMaxDivergence output measure.
[make_fix_delta in Rust documentation.](https://docs.rs/opendp/latest/opendp/combinators/fn.make_fix_delta.html)
:param measurement: a measurement with a privacy curve to be fixed
:type measurement: Measurement
:param delta: parameter to fix the privacy curve with
:type delta: Any
:rtype: Measurement
:raises TypeError: if an argument's type differs from the expected type
:raises UnknownTypeError: if a type argument fails to parse
:raises OpenDPException: packaged error from the core OpenDP library
"""
assert_features("contrib")
# No type arguments to standardize.
# Convert arguments to c types.
measurement = py_to_c(measurement, c_type=Measurement, type_name=None)
delta = py_to_c(delta, c_type=AnyObjectPtr, type_name=get_atom(measurement_output_distance_type(measurement)))
# Call library function.
function = lib.opendp_combinators__make_fix_delta
function.argtypes = [Measurement, AnyObjectPtr]
function.restype = FfiResult
return c_to_py(unwrap(function(measurement, delta), Measurement))
[docs]
def make_population_amplification(
measurement: Measurement,
population_size: int
) -> Measurement:
"""Construct an amplified measurement from a `measurement` with privacy amplification by subsampling.
This measurement does not perform any sampling.
It is useful when you have a dataset on-hand that is a simple random sample from a larger population.
The DIA, DO, MI and MO between the input measurement and amplified output measurement all match.
Protected by the "honest-but-curious" feature flag
because a dishonest adversary could set the population size to be arbitrarily large.
[make_population_amplification in Rust documentation.](https://docs.rs/opendp/latest/opendp/combinators/fn.make_population_amplification.html)
:param measurement: the computation to amplify
:type measurement: Measurement
:param population_size: the size of the population from which the input dataset is a simple sample
:type population_size: int
:rtype: Measurement
:raises TypeError: if an argument's type differs from the expected type
:raises UnknownTypeError: if a type argument fails to parse
:raises OpenDPException: packaged error from the core OpenDP library
"""
assert_features("contrib", "honest-but-curious")
# No type arguments to standardize.
# Convert arguments to c types.
measurement = py_to_c(measurement, c_type=Measurement, type_name=AnyMeasurement)
population_size = py_to_c(population_size, c_type=ctypes.c_size_t, type_name=usize)
# Call library function.
function = lib.opendp_combinators__make_population_amplification
function.argtypes = [Measurement, ctypes.c_size_t]
function.restype = FfiResult
return c_to_py(unwrap(function(measurement, population_size), Measurement))
[docs]
def make_pureDP_to_fixed_approxDP(
measurement: Measurement
) -> Measurement:
"""Constructs a new output measurement where the output measure
is casted from `MaxDivergence<QO>` to `FixedSmoothedMaxDivergence<QO>`.
[make_pureDP_to_fixed_approxDP in Rust documentation.](https://docs.rs/opendp/latest/opendp/combinators/fn.make_pureDP_to_fixed_approxDP.html)
:param measurement: a measurement with a privacy measure to be casted
:type measurement: Measurement
:rtype: Measurement
:raises TypeError: if an argument's type differs from the expected type
:raises UnknownTypeError: if a type argument fails to parse
:raises OpenDPException: packaged error from the core OpenDP library
"""
assert_features("contrib")
# No type arguments to standardize.
# Convert arguments to c types.
measurement = py_to_c(measurement, c_type=Measurement, type_name=AnyMeasurement)
# Call library function.
function = lib.opendp_combinators__make_pureDP_to_fixed_approxDP
function.argtypes = [Measurement]
function.restype = FfiResult
return c_to_py(unwrap(function(measurement), Measurement))
[docs]
def make_pureDP_to_zCDP(
measurement: Measurement
) -> Measurement:
"""Constructs a new output measurement where the output measure
is casted from `MaxDivergence<QO>` to `ZeroConcentratedDivergence<QO>`.
[make_pureDP_to_zCDP in Rust documentation.](https://docs.rs/opendp/latest/opendp/combinators/fn.make_pureDP_to_zCDP.html)
**Citations:**
- [BS16 Concentrated Differential Privacy: Simplifications, Extensions, and Lower Bounds](https://arxiv.org/pdf/1605.02065.pdf#subsection.3.1)
:param measurement: a measurement with a privacy measure to be casted
:type measurement: Measurement
:rtype: Measurement
:raises TypeError: if an argument's type differs from the expected type
:raises UnknownTypeError: if a type argument fails to parse
:raises OpenDPException: packaged error from the core OpenDP library
"""
assert_features("contrib")
# No type arguments to standardize.
# Convert arguments to c types.
measurement = py_to_c(measurement, c_type=Measurement, type_name=AnyMeasurement)
# Call library function.
function = lib.opendp_combinators__make_pureDP_to_zCDP
function.argtypes = [Measurement]
function.restype = FfiResult
return c_to_py(unwrap(function(measurement), Measurement))
[docs]
def make_zCDP_to_approxDP(
measurement: Measurement
) -> Measurement:
"""Constructs a new output measurement where the output measure
is casted from `ZeroConcentratedDivergence<QO>` to `SmoothedMaxDivergence<QO>`.
[make_zCDP_to_approxDP in Rust documentation.](https://docs.rs/opendp/latest/opendp/combinators/fn.make_zCDP_to_approxDP.html)
:param measurement: a measurement with a privacy measure to be casted
:type measurement: Measurement
:rtype: Measurement
:raises TypeError: if an argument's type differs from the expected type
:raises UnknownTypeError: if a type argument fails to parse
:raises OpenDPException: packaged error from the core OpenDP library
"""
assert_features("contrib")
# No type arguments to standardize.
# Convert arguments to c types.
measurement = py_to_c(measurement, c_type=Measurement, type_name=AnyMeasurement)
# Call library function.
function = lib.opendp_combinators__make_zCDP_to_approxDP
function.argtypes = [Measurement]
function.restype = FfiResult
return c_to_py(unwrap(function(measurement), Measurement))
