code: def _contains_incorrect_tx_origin_use(node):
          
          solidity_var_read = node.solidity_variables_read
          if solidity_var_read:
              return any(v.name == 'tx.origin' for v in solidity_var_read) and\
                     all(v.name != 'msg.sender' for v in solidity_var_read)
          return False
docs: Check if the node reads tx.origin and doesn't read msg.sender
               Avoid the FP due to (msg.sender == tx.origin)
          Returns:
              (bool)