CDF is not defined for some EF distributions

[Nimrais]

julia> using ExponentialFamily

julia> cdf(NormalMeanVariance(0, 1), 1)
ERROR: MethodError: no method matching cdf(::NormalMeanVariance{Float64}, ::Int64)

Closest candidates are:
  cdf(::Kolmogorov, ::Real)
   @ Distributions ~/.julia/packages/Distributions/UaWBm/src/univariate/continuous/kolmogorov.jl:59
  cdf(::Chernoff, ::Real)
   @ Distributions ~/.julia/packages/Distributions/UaWBm/src/univariate/continuous/chernoff.jl:156
  cdf(::DiscreteUniform, ::Int64)
   @ Distributions ~/.julia/packages/Distributions/UaWBm/src/univariate/discrete/discreteuniform.jl:76
  ...

Stacktrace:
 [1] top-level scope
   @ REPL[18]:1

julia> using Distributions

julia> cdf(NormalMeanVariance(0, 1), 1)
ERROR: MethodError: no method matching cdf(::NormalMeanVariance{Float64}, ::Int64)

Closest candidates are:
  cdf(::Kolmogorov, ::Real)
   @ Distributions ~/.julia/packages/Distributions/UaWBm/src/univariate/continuous/kolmogorov.jl:59
  cdf(::Chernoff, ::Real)
   @ Distributions ~/.julia/packages/Distributions/UaWBm/src/univariate/continuous/chernoff.jl:156
  cdf(::DiscreteUniform, ::Int64)
   @ Distributions ~/.julia/packages/Distributions/UaWBm/src/univariate/discrete/discreteuniform.jl:76
  ...

Stacktrace:
 [1] top-level scope
   @ REPL[20]:1

julia> cdf(Normal(0,1), 1)
0.841344746068543