What do tabs \t mean in Elm? -

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I was walking with Elm and I found this error message: 

  [1 1] In compiling main (Main. Ml) parse error (line 3, column 1): unexpected '\ t' hopeful of new line, spaces or end of input   
 What tabs Does the special meaning of Elm, as they may be in Python? For example  
  main: element main = flow down [leftAligned (toText "A"), leftAligned (toText "B"), leftAligned (toText "It's complaining that instead of the blank You want to use the tab C ++.  
 You will see that when you change the tab with spaces, the code works.

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