Module Gpr.Cov_const

Covariance of a constant function
module Params : sig ... end
module Eval : Interfaces.Specs.Eval with type Kernel.params = Params.t with type Inducing.t = int with type Input.t = unit with type Inputs.t = int
module Deriv : Interfaces.Specs.Deriv with module Eval = Eval with type Hyper.t = [ `Log_theta ]