class_docstr: `current.card.append` should be accessible to the card with `customize=True`.
      - Even if there are other editable cards without `id` and with `id`
class_docstr_tok: ["`","current.card.append","`","should","be","accessible","to","the","card","with","`","customize=True","`",".","-","Even","if","there","are","other","editable","cards","without","`","id","`","and","with","`","id","`"]
code: def step_start(self):
      from metaflow import current
      from metaflow.plugins.cards.card_modules.test_cards import (
          TestStringComponent,
      )
      import random
  
      self.random_number = random.randint(0, 100)
      current.card.append(TestStringComponent(str(self.random_number)))
  
imports: from metaflow_test import MetaflowTest, ExpectationFailed, steps, tag
label_desc: Use image node_id 1 for calling the DefaultEditableCardWithCustomizeTest obj's underlying member method code with example usage: obj.step_start() without return types