lib/collection/header.js
function (options) {
        /**
         * The header Key
         * @type {String}
         * @todo avoid headers with falsy key.
         */
        this.key = _.get(options, 'key') || E;

        /**
         * The header value
         * @type {String}
         */
        this.value = _.get(options, 'value') || E;

        /**
         * Indicates whether the header was added by internal SDK operations, such as authorizing a request.
         * @type {*|boolean}
         */
        _.has(options, 'system') && (this.system = options.system);

        /**
         * Indicates whether the header should be .
         * @type {*|boolean}
         * @todo figure out whether this should be in property.js
         */
        _.has(options, 'disabled') && (this.disabled = options.disabled);
    }
function (options) {
        /**
         * The header Key
         * @type {String}
         * @todo avoid headers with falsy key.
         */
        this.key = _.get(options, 'key') || E;

        /**
         * The header value
         * @type {String}
         */
        this.value = _.get(options, 'value') || E;

        /**
         * Indicates whether the header was added by internal SDK operations, such as authorizing a request.
         * @type {*|boolean}
         */
        _.has(options, 'system') && (this.system = options.system);

        /**
         * Indicates whether the header should be .
         * @type {*|boolean}
         * @todo figure out whether this should be in property.js
         */
        _.has(options, 'disabled') && (this.disabled = options.disabled);
    }
function ( options ) { /**
         * The header Key
         * @type {String}
         * @todo avoid headers with falsy key.
         */ this . key = _ . get ( options , 'key' ) || E ; /**
         * The header value
         * @type {String}
         */ this . value = _ . get ( options , 'value' ) || E ; /**
         * Indicates whether the header was added by internal SDK operations, such as authorizing a request.
         * @type {*|boolean}
         */ _ . has ( options , 'system' ) && ( this . system = options . system ) ; /**
         * Indicates whether the header should be .
         * @type {*|boolean}
         * @todo figure out whether this should be in property.js
         */ _ . has ( options , 'disabled' ) && ( this . disabled = options . disabled ) ; }
Assigns the given properties to the Header

@param {Object} options
@todo check for allowed characters in header key-value or store encoded.
Assigns the given properties to the Header