code: def handle_data(context, data):
      context.github = get_dataset("github")
      context.github.sort_index(level=0, inplace=True)
  
      context.zec = data.history(
          symbol("zec_usdt"),
          [
              "price",
          ],
          bar_count=365,
          frequency="1d",
      )
      context.xmr = data.history(
          symbol("xmr_usdt"),
          [
              "price",
          ],
          bar_count=365,
          frequency="1d",
      )
  
imports: import pandas
  import matplotlib.pyplot
  from catalyst import run_algorithm
  from catalyst.api import symbol, get_dataset
label_desc: Use image node_id 2 for calling a global function with example usage: handle_data(context, data) without return types