(`str`, *optional*, defaults to `"fourier"`):
            Type of position encoding to use. Can be "trainable" or "fourier".
        concat_or_add_pos (`str`, *optional*, defaults to `"concat"`):
            How to concatenate the position encoding to the input. Can be "concat" or "add".
        out_channels (`int`, *optional*, defaults to 64):
            Number of channels in the output.
        project_pos_dim (`int`, *optional*, defaults to -1):
            Dimension of the position encoding to project to. If -1, no projection is applied.
        **position_encoding_kwargs (`Dict`, *optional*):
            Keyword arguments for the position encoding.
    r: