Serial 1 layer NN

serial.py

# SERIAL:
W = parameter(M, N)

def forward(x_: float32[N]) -> float32:
    # matrix-vector multiplication:
    zs = float32[M]  # let's imagine we have a float32 dtype in Vyper
    for i, W_row in enumerate(W):
        zs[i] = dot(W_row, x_)  # 'dot' is an external smart contract

    # summation:
    y = sum(zs)  # scalar

    return y