code: def visit_Subscript(self, node):
      if isinstance(node.value, ast.Call):
          for alias in self.aliases[node.value.func]:
              if alias is MODULES["builtins"]["getattr"]:
                  attr_name = node.value.args[-1].value
                  attribute = attributes[attr_name][-1]
                  self.add(node, attribute.return_range_content(None))
              elif isinstance(alias, Intrinsic):
                  self.add(
                      node,
                      alias.return_range_content(
                          [self.visit(n) for n in node.value.args]
                      ),
                  )
              else:
                  return self.generic_visit(node)
          if not self.aliases[node.value.func]:
              return self.generic_visit(node)
          self.visit(node.slice)
          return self.result[node]
      else:
          value = self.visit(node.value)
          slice = self.visit(node.slice)
          return self.add(node, value[slice])
  
imports: import gast
  from collections import defaultdict
  from functools import reduce
  from pythran.analyses import Aliases, CFG
  from pythran.intrinsic import Intrinsic
  from pythran.passmanager import ModuleAnalysis
  from pythran.interval import Interval, IntervalTuple, UNKNOWN_RANGE
  from pythran.tables import MODULES, attributes
label_desc: Use image node_id 15 for calling the RangeValuesBase obj's underlying member method code with example usage: obj.visit_Subscript(node) and returns: self, self, self, self