code: def get_body_region(defined):
      
      scope = defined.get_scope()
      pymodule = defined.get_module()
      lines = pymodule.lines
      node = defined.get_ast()
      start_line = node.lineno
      if defined.get_doc() is None:
          start_line = node.body[0].lineno
      elif len(node.body) > 1:
          start_line = node.body[1].lineno
      start = lines.get_line_start(start_line)
      scope_start = pymodule.logical_lines.logical_line_in(scope.start)
      if scope_start[1] >= start_line:
          # a one-liner!
          # XXX: what if colon appears in a string
          start = pymodule.source_code.index(':', start) + 1
          while pymodule.source_code[start].isspace():
              start += 1
      end = min(lines.get_line_end(scope.end) + 1, len(pymodule.source_code))
      return start, end
docs: Return the start and end offsets of function body