docs: function someSchemasValidate(propName) {
      return schema[propName].some(function (possibleType) {
        var tempInput = {},
          tempSchema = {},
          tempErrs;
  
        tempInput[propName] = input[propName];
        tempSchema[propName] = possibleType;
        tempErrs = getErrs({
          input: tempInput,
          schema: tempSchema,
          optional: optional
        });
  
        return tempErrs.length === 0;
      });
    }