def METHOD_NAME():
    input_map = dict(
        aff_file=dict(
            argstr="-aff %s",
            extensions=None,
        ),
        amc_flag=dict(
            argstr="-amc",
        ),
        args=dict(
            argstr="%s",
        ),
        be_val=dict(
            argstr="-be %f",
        ),
        cpp_file=dict(
            argstr="-cpp %s",
            extensions=None,
            name_source=["flo_file"],
            name_template="%s_cpp.nii.gz",
        ),
        environ=dict(
            nohash=True,
            usedefault=True,
        ),
        fbn2_val=dict(
            argstr="-fbn %d %d",
        ),
        fbn_val=dict(
            argstr="--fbn %d",
        ),
        flo_file=dict(
            argstr="-flo %s",
            extensions=None,
            mandatory=True,
        ),
        flo_smooth_val=dict(
            argstr="-smooF %f",
        ),
        flwth2_thr_val=dict(
            argstr="-fLwTh %d %f",
        ),
        flwth_thr_val=dict(
            argstr="--fLwTh %f",
        ),
        fmask_file=dict(
            argstr="-fmask %s",
            extensions=None,
        ),
        fupth2_thr_val=dict(
            argstr="-fUpTh %d %f",
        ),
        fupth_thr_val=dict(
            argstr="--fUpTh %f",
        ),
        incpp_file=dict(
            argstr="-incpp %s",
            extensions=None,
        ),
        jl_val=dict(
            argstr="-jl %f",
        ),
        kld2_flag=dict(
            argstr="-kld %d",
        ),
        kld_flag=dict(
            argstr="--kld",
        ),
        le_val=dict(
            argstr="-le %f",
        ),
        ln_val=dict(
            argstr="-ln %d",
        ),
        lncc2_val=dict(
            argstr="-lncc %d %f",
        ),
        lncc_val=dict(
            argstr="--lncc %f",
        ),
        lp_val=dict(
            argstr="-lp %d",
        ),
        maxit_val=dict(
            argstr="-maxit %d",
        ),
        nmi_flag=dict(
            argstr="--nmi",
        ),
        no_app_jl_flag=dict(
            argstr="-noAppJL",
        ),
        noconj_flag=dict(
            argstr="-noConj",
        ),
        nopy_flag=dict(
            argstr="-nopy",
        ),
        nox_flag=dict(
            argstr="-nox",
        ),
        noy_flag=dict(
            argstr="-noy",
        ),
        noz_flag=dict(
            argstr="-noz",
        ),
        omp_core_val=dict(
            argstr="-omp %i",
            usedefault=True,
        ),
        pad_val=dict(
            argstr="-pad %f",
        ),
        pert_val=dict(
            argstr="-pert %d",
        ),
        rbn2_val=dict(
            argstr="-rbn %d %d",
        ),
        rbn_val=dict(
            argstr="--rbn %d",
        ),
        ref_file=dict(
            argstr="-ref %s",
            extensions=None,
            mandatory=True,
        ),
        ref_smooth_val=dict(
            argstr="-smooR %f",
        ),
        res_file=dict(
            argstr="-res %s",
            extensions=None,
            name_source=["flo_file"],
            name_template="%s_res.nii.gz",
        ),
        rlwth2_thr_val=dict(
            argstr="-rLwTh %d %f",
        ),
        rlwth_thr_val=dict(
            argstr="--rLwTh %f",
        ),
        rmask_file=dict(
            argstr="-rmask %s",
            extensions=None,
        ),
        rupth2_thr_val=dict(
            argstr="-rUpTh %d %f",
        ),
        rupth_thr_val=dict(
            argstr="--rUpTh %f",
        ),
        smooth_grad_val=dict(
            argstr="-smoothGrad %f",
        ),
        ssd2_flag=dict(
            argstr="-ssd %d",
        ),
        ssd_flag=dict(
            argstr="--ssd",
        ),
        sx_val=dict(
            argstr="-sx %f",
        ),
        sy_val=dict(
            argstr="-sy %f",
        ),
        sz_val=dict(
            argstr="-sz %f",
        ),
        vel_flag=dict(
            argstr="-vel",
        ),
        verbosity_off_flag=dict(
            argstr="-voff",
        ),
    )
    inputs = RegF3D.input_spec()
    for key, metadata in list(input_map.items()):
        for metakey, value in list(metadata.items()):
            assert getattr(inputs.traits()[key], metakey) == value