class_docstr: Validation for FileBasedImage instances
class_docstr_tok: ["Validation","for","FileBasedImage","instances"]
code: def obj_params(self):
      # Create new images
      for shape, dtype in product(
          self.example_shapes, self.example_dtypes
      ):
          arr = np.arange(np.prod(shape), dtype=dtype).reshape(shape)
          hdr = self.header_maker()
          func = self.make_imaker(arr.copy(), hdr)
          params = dict(
              dtype=dtype, data=arr, shape=shape, is_proxy=False
          )
          yield func, params
  
imports: import warnings
  from itertools import product
  import numpy
  import pytest
  from ..filebasedimages import FileBasedHeader, FileBasedImage, SerializableImage
  from .test_image_api import GenericImageAPI, SerializeMixin
label_desc: Use image node_id 2 for calling the TestFBImageAPI obj's underlying member method code with example usage: obj.obj_params() without return types