code: function deserializeParameter(server, name, value, schema) {
      if (!schema) return value;
  
      const type = schemaType(schema);
      if (!type) server.log('req-params', 'Indeterminate schema type for parameter ' + name, schema);
  
      if (type === 'array') {
          const format = schema.hasOwnProperty('collectionFormat') ? schema.collectionFormat : 'csv';
          const delimiter = format === 'csv' ? ','
              : format === 'ssv' ? ' '
                  : format === 'tsv' ? '\t'
                      : format === 'pipes' ? '|' : ',';
          value = value.split(delimiter);
          if (!schema.items) return value;
          return value.map(item => {
              return deserializeParameter(server, 'items for ' + name, item, schema.items);
          });
  
      } else if (type === 'boolean') {
          return !(value === 'false' || value === 'null' || value === '0' || value === '');
  
      } else if (type === 'integer' && rxInteger.test(value)) {
          return parseInt(value);
  
      } else if (type === 'number' && rxNumber.test(value)) {
          return parseFloat(value);
  
      } else {
          return value;
      }
  }
docs: Deserialize a single parameter.
  @param {SansServer} server
  @param {string} name
  @param {*} value
  @param {*} schema
  @returns {*}