code: def alter(node, metadata):
      """Override nodes attributes from metadata node mapping"""
      if node is not None and metadata and "node" in metadata:
          node.attrib.update(
              dict((k, str(v)) for k, v in metadata["node"].items())
          )
  
imports: from __future__ import division
  import re
  from decimal import Decimal
  from math import ceil, cos, floor, log10, pi, sin
label_desc: Use image node_id 18 for calling a global function with example usage: alter(node, metadata) without return types