This function gets a list of all available liquidity pools on the Bancor Network.
The function returns a list of all token contract addresses that have a liquidity pool on Bancor.
The returned list includes the token addresses of available liquidity pools.
0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee, 0x6b175474e89094c44da98b954eedeac495271d0f, 0x514910771af9ca656af840dff83e8264ecf986ca address
Note that the addresses returned are for the base tokens, not the contract addresses of Bancor pool tokens (bnTokens).