code: def indentcount_lines(lines):
      """Minimum indent for all lines in line list
  
      >>> lines = [' one', '  two', '   three']
      >>> indentcount_lines(lines)
      1
      >>> lines = []
      >>> indentcount_lines(lines)
      0
      >>> lines = [' one']
      >>> indentcount_lines(lines)
      1
      >>> indentcount_lines(['    '])
      0
      """
      indentno = sys.maxsize
      for line in lines:
          stripped = line.lstrip()
          if stripped:
              indentno = min(indentno, len(line) - len(stripped))
      if indentno == sys.maxsize:
          return 0
      return indentno
  
file_path: scipy/scipy/_lib/doccer.py
imports: import sys
label_desc: Use image node_id 5 for calling a global function with example usage: indentcount_lines(lines) and returns: indentno, int