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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def DisplayAccountTree(account, accounts, links, depth=0):
 """Displays an account tree. Args: account: dict The account to display. accounts: dict Map from customerId to account. links: dict Map from customerId to child links. depth: int Depth of the current account in the tree. """

  prefix = '-' * depth * 2
  print '%s%s, %s' % (prefix, account['customerId'], account['name'])
  if account['customerId'] in links:
    for child_link in links[account['customerId']]:
      child_account = accounts[child_link['clientCustomerId']]
      DisplayAccountTree(child_account, accounts, links, depth + 1)