fn init_admin(env: soroban_sdk::Env, account: soroban_sdk::Address)
fn set_pools_plane(
env: soroban_sdk::Env,
admin: soroban_sdk::Address,
plane: soroban_sdk::Address,
)
fn get_pools_plane(env: soroban_sdk::Env) -> soroban_sdk::Address
fn get_liquidity(
env: soroban_sdk::Env,
pools: soroban_sdk::Vec,
) -> soroban_sdk::Vec