Derive Macro MontConfig 

#[derive(MontConfig)]
{
    // Attributes available to this derive:
    #[modulus]
    #[generator]
    #[small_subgroup_base]
    #[small_subgroup_power]
}

Derive the MontConfig trait.

The attributes available to this macro are

• modulus: Specify the prime modulus underlying this prime field.
• generator: Specify the generator of the multiplicative subgroup of this prime field. This value must be a quadratic non-residue in the field.
• small_subgroup_base and small_subgroup_power (optional): If the field has insufficient two-adicity, specify an additional subgroup of size small_subgroup_base.pow(small_subgroup_power).