Source code for qiskit_algorithms.gradients.qfi_result

# This code is part of a Qiskit project.
#
# (C) Copyright IBM 2022, 2025.
#
# This code is licensed under the Apache License, Version 2.0. You may
# obtain a copy of this license in the LICENSE.txt file in the root directory
# of this source tree or at http://www.apache.org/licenses/LICENSE-2.0.
#
# Any modifications or derivative works of this code must retain this
# copyright notice, and modified files need to carry a notice indicating
# that they have been altered from the originals.
"""
QFI result class
"""

from __future__ import annotations

from dataclasses import dataclass
from typing import Any, Sequence

import numpy as np



[docs]
@dataclass(frozen=True)
class QFIResult:
    """Result of QFI."""

    qfis: list[np.ndarray]
    """The QFI."""
    metadata: dict[str, Any]
    """Additional information about the job."""
    precision: float | Sequence[float]
    """Precision for the execution of the job."""