code: def copy_img(img):
      """Copy an image to a nibabel.Nifti1Image.
  
      Parameters
      ----------
      img: image
          nibabel SpatialImage object to copy.
  
      Returns
      -------
      img_copy: image
          copy of input (data, affine and header)
      """
      if not isinstance(img, nibabel.spatialimages.SpatialImage):
          raise ValueError("Input value is not an image")
      return new_img_like(
          img,
          safe_get_data(img, copy_data=True),
          img.affine.copy(),
          copy_header=True,
      )
  
imports: import collections.abc
  import copy
  import itertools
  import warnings
  import nibabel
  import numpy
  from joblib import Memory, Parallel, delayed
  from scipy.ndimage import gaussian_filter1d, generate_binary_structure, label
  from scipy.stats import scoreatpercentile
  from ..None import signal
  from .._utils import _repr_niimgs, as_ndarray, check_niimg, check_niimg_3d, check_niimg_4d, fill_doc
  from .._utils.exceptions import DimensionError
  from .._utils.helpers import rename_parameters, stringify_path
  from .._utils.niimg import _get_data, safe_get_data
  from .._utils.niimg_conversions import _index_img, check_same_fov, iter_check_niimg
  from .._utils.param_validation import check_threshold
  from .._utils.path_finding import resolve_globbing
label_desc: Use image node_id 24 for calling a global function with example usage: copy_img(img) and returns: new_img_like