Why does PineScript tells me that my TEMA is not a function?

Question

I'm trying to apply the Triple Moving Average to CCI, but I get the error "tema is not a function". Could someone help me? Thank you very much. Here is my code:

    //@version=4

study("my Script",overlay=false)

//Input
Temalength = input(30, title="Tema Length")

src=close

EMA1= ema(src, Temalength)
EMA2 = ema(EMA1, Temalength)
EMA3 = ema(EMA2, Temalength)
tema = (3*EMA1)-(3*EMA2)+EMA3


//CCI
CCI = cci(src, 10)
emaCCI = tema(CCI, 20)

plot(emaCCI, title="TemaCCI", linewidth=2)

Answer 1

Solved

tema (x, y) => 
    EMA1 = ema(x, y)
    EMA2 = ema(EMA1, y)
    EMA3 = ema(EMA2, y)
    (3*EMA1)-(3*EMA2)+EMA3