class_docstr: Series decomposition block.
class_docstr_tok: ["Series","decomposition","block","."]
code: def __init__(self, kernel_size):
      self.kernel_size = kernel_size
  
imports: from sktime.utils.validation._dependencies import _check_soft_dependencies
  import math
label_desc: Use image node_id 1 to create a new SeriesDecomposer object  with example: obj = SeriesDecomposer(kernel_size)