import torch


def build_classifier_confidence(input_channels: int) -> torch.nn.Sequential:
    """
    Create sequential module for classifier confidence score.

    :param input_channels: Number of input activation maps.
    :return: Sequential module.
    """
    return torch.nn.Sequential(
        torch.nn.Linear(input_channels, 256),
        torch.nn.ReLU(),
        torch.nn.Linear(256, 1),
        torch.nn.Tanh()
    )