Update `getTotalSupply` function in LIP 0051

[mjerkov]

Motivation

In LIP 0051, getTotalSupply function differs from the implementation.

Current Specifications

Currently, getTotalSupply returns the total supply for a provided tokenID:

def getTotalSupply(tokenID: TokenID) -> uint64:
     if totalSupply(tokenID) does not exist:
         raise Exception("Total supply entry does not exist.")
     return totalSupply(tokenID)

Proposed Specifications

We propose to change the getTotalSupply function to return total supply for all tokenID:

def getTotalSupply() -> dict[TokenID, uint64]:
    totalSupply: dict[TokenID, uint64] = {}
    for (storeKey, storeValue) in supplyStore.items():
        tokenID = storeKey
        totalSupply[tokenID] = storeValue.totalSupply
    return totalSupply

Affected LIPs

0051