code: def broadcast_signed_transaction(unsigned_tx, signatures, pubkeys, coin_symbol='btc', api_key=None):
      '''
      Broadcasts the transaction from create_unsigned_tx
      '''
  
      assert 'errors' not in unsigned_tx, unsigned_tx
      assert api_key, 'api_key required'
  
      url = make_url(coin_symbol, **dict(txs='send'))
  
      data = unsigned_tx.copy()
      data['signatures'] = signatures
      data['pubkeys'] = pubkeys
  
      params = {'token': api_key}
  
      r = requests.post(url, params=params, json=data, verify=True, timeout=TIMEOUT_IN_SECONDS)
      response_dict = get_valid_json(r)
  
      if response_dict.get('tx') and response_dict.get('received'):
          response_dict['tx']['received'] = parser.parse(response_dict['tx']['received'])
  
      return response_dicf broadcast_signed_transaction(unsigned_tx, signatures, pubkeys, coin_symbol='btc', api_key=None):
      '''
      Broadcasts the transaction from create_unsigned_tx
      '''
  
      assert 'errors' not in unsigned_tx, unsigned_tx
      assert api_key, 'api_key required'
  
      url = make_url(coin_symbol, **dict(txs='send'))
  
      data = unsigned_tx.copy()
      data['signatures'] = signatures
      data['pubkeys'] = pubkeys
  
      params = {'token': api_key}
  
      r = requests.post(url, params=params, json=data, verify=True, timeout=TIMEOUT_IN_SECONDS)
      response_dict = get_valid_json(r)
  
      if response_dict.get('tx') and response_dict.get('received'):
          response_dict['tx']['received'] = parser.parse(response_dict['tx']['received'])
  
      return response_dict
docs: Broadcasts the transaction from create_unsigned_tx