{{alias}}( prng, dtypes, dtype )
    Returns a factory function for generating pseudorandom values drawn from a
    unary PRNG.

    Parameters
    ----------
    prng: Function
        Unary pseudorandom value generator.

    dtypes: Array<string>
        List of supported output array data types.

    dtype: string
        Default output array data type.

    Returns
    -------
    fcn: Function
        Factory function which returns a function for creating arrays. The
        returned factory function accepts two optional arguments:

        - param1: PRNG parameter.
        - options: function options.

        If provided a PRNG parameter, the factory function returns a partially
        applied function for creating arrays.

        The function supports the following options:

        - prng: pseudorandom number generator which generates uniformly
          distributed pseudorandom numbers.
        - seed: pseudorandom value generator seed.
        - state: pseudorandom value generator state.
        - copy: boolean indicating whether to copy a provided pseudorandom value
          generator state.
        - dtype: default output array data type. Setting this option overrides
          the default array data type specified when invoking the parent
          function.

    Examples
    --------
    > var dt = [ 'float64', 'float32', 'generic' ];
    > var f = {{alias}}( {{alias:@stdlib/random/base/exponential}}, dt, dt[0] );
    > var fcn = f();
    > var x = fcn( 5, 2.0 )
    <Float64Array>
    > x = fcn( 5, 2.0, { 'dtype': 'float32' } )
    <Float32Array>

    See Also
    --------