code: function ParamValidator(validation) {
      if (validation === true || validation === undefined) {
        validation = {'min': true};
      }
      this.validation = validation;
    }
docs: Create a new validator object.
  
  @param validation [Boolean|map] whether input parameters should be
  validated against the operation description before sending the
  request. Pass a map to enable any of the following specific
  validation features:
  
  * **min** [Boolean] &mdash; Validates that a value meets the min
  constraint. This is enabled by default when paramValidation is set
  to `true`.
  * **max** [Boolean] &mdash; Validates that a value meets the max
  constraint.
  * **pattern** [Boolean] &mdash; Validates that a string value matches a
  regular expression.
  * **enum** [Boolean] &mdash; Validates that a string value matches one
  of the allowable enum values.