Constant PADDED_FP2_LENGTH

pub const PADDED_FP2_LENGTH: usize = _; // 128usize

PADDED_FP2_LENGTH specifies the number of bytes that the EVM will use to represent a Fp^2 element according to the padding rules specified in EIP-2537.

Note: This is the quadratic extension of Fp, and by definition means we need 2 Fp elements.