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/*
 * Get the equalizer settings.
 *
 * This method returns an array.  The first element in the array is the
 * preamp setting, and the second element in the array is an 10 element
 * array of band settings.  So the result would look something like
 * this:
 *
 *   [1.0, [0.0, -0.5, 0.9, 0.0, 0.0, 0.0, 0.2, 0.5, -0.1, 0.0]]
 * 
 * Examples:
 *   preamp, bands = remote.get_equalizer
 *   eq = remote.eq
 *
 */
static VALUE xr_eq(VALUE self) {