================================================================================
Simple Command Pipe
================================================================================

*ls | *less

--------------------------------------------------------------------------------

(root
  (statement
    (pipe
      (command
        (command_text))
      (command
        (command_text)))))

================================================================================
Simple Function Pipe
================================================================================

fs:read('file.txt') | output()

--------------------------------------------------------------------------------

(root
  (statement
    (pipe
      (function_call
        (function_expression
          (index
            (index_expression
              (value
                (built_in_value)))
            (index_expression
              (identifier))))
        (expression
          (value
            (string))))
      (function_call
        (function_expression
          (value
            (built_in_value)))))))