Isn't there any built-in solution for Tact?

I have used this function to do so but I want it to return a string instead of Slice:

inline fun addressToHex(value: Int): Slice {
if (value == 0) {
let buffer: Builder = beginCell();
let i: Int = 0;
while (i < 64){
buffer = buffer.storeUint(0, 8);
i = i + 1;
}
return buffer.endCell().beginParse().preloadBits(i * 8);
} else {

let j: Int = value;
let length: Int = 0;
while (j != 0) {
length = length + 1;
j = j >> 4;
}

let mask: Int = 15;
let buffer: Builder = beginCell();

while (value != 0) {
let curr: Int = (value & mask);
if(curr > 9){
buffer = buffer.storeUint(55 + curr, 8);
} else {
buffer = buffer.storeUint(48 + curr, 8);
}
value = value >> 4;
}

let final_cell: Builder = beginCell();

let reversed_buffer: Slice = buffer.endCell().beginParse();
let i: Int = 64;
while(i > 0){
i = i - 1;
let chr: Slice = reversed_buffer.preloadBitsOffset(i * 8, 8);
final_cell = final_cell.storeSlice(chr);
}
return final_cell.endCell().beginParse().preloadBits(512);
}
}