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'use strict';
/*! * ignore */
module.exports = function isDefiningProjection(val) {  if (val == null) {    // `undefined` or `null` become exclusive projections    return true;  }  if (typeof val === 'object') {    // Only cases where a value does **not** define whether the whole projection    // is inclusive or exclusive are `$meta` and `$slice`.    return !('$meta' in val) && !('$slice' in val);  }  return true;};