code: async def vcx_ledger_get_fees() -> str:
      
      logger = logging.getLogger(__name__)
  
      if not hasattr(vcx_ledger_get_fees, "cb"):
          logger.debug("vcx_ledger_get_fees: Creating callback")
          vcx_ledger_get_fees.cb = create_cb(CFUNCTYPE(None, c_uint32))
  
      result = await do_call('vcx_ledger_get_fees',
                             vcx_ledger_get_fees.cb)
  
      logger.debug("vcx_ledger_get_fees completed")
      return result
docs: Get ledger fees from the sovrin network
      Example:
      fees = await vcx_ledger_get_fees()
      :return: JSON representing fees