class_docstr: XY Line graph class
docstr: Getter for the minimum series value
code: def _min(self):
      """Getter for the minimum series value"""
      return (
          self.range[0]
          if (self.range and self.range[0] is not None)
          else (min(self.yvals) if self.yvals else None)
      )
  
file_path: pygal/pygal/graph/xy.py
imports: from functools import reduce
  from pygal.graph.dual import Dual
  from pygal.graph.line import Line
  from pygal.util import cached_property, compose, ident
label_desc: Use image node_id 3 for calling the XY obj's underlying member method code with example usage: obj._min() and returns: unknown