code: def call(self, input):
      x = self.conv3d(input)
      x = self.instnorm(x)
      x = self.activation(x)
  
      return x
  
imports: import logging
  import numpy
  from dipy.data import get_fnames
  from dipy.testing.decorators import doctest_skip_parser
  from dipy.utils.optpkg import optional_package
  from dipy.nn.utils import normalize, unnormalize, set_logger_level
label_desc: Use image node_id 2 for calling the DecoderBlock obj's underlying member method code with example usage: obj.call(input) and returns: x