class_docstr: A container for each tier.
class_docstr_tok: ["A","container","for","each","tier","."]
docstr: @return:  (xmin, xmax) tuple for a given tier.
docstr_tok: ["@","return",":","(","xmin",",","xmax",")","tuple","for","a","given","tier","."]
code: def min_max(self):
      """
      @return:  (xmin, xmax) tuple for a given tier.
      """
  
      return (self.xmin, self.xmax)
  
imports: import sys
  import re
label_desc: Use image node_id 9 for calling the Tier obj's underlying member method code with example usage: obj.min_max() and returns: self,  self