* Delete an existing shield at the requested index. * @param {number} shieldIndex - Position of the shield in the array of shields on this sign to d

* Create a new panel for the post. Add it to the end of the list of existing panels.

* Delete an existing panel at the requested index. * @param {number} panelIndex - Position of the panel in the array of panels on this post to delet

* Duplicate an existing panel. Add it immediately after the panel being duplicated. * @param {number} panelIndex - Position of the panel in the arra

* Creates a new subpanel

* Shift the requested panel to the left one position swapping it with that panel to the left. * @param {number} panelIndex - Position of the panel i

* Shift the requested panel to the right one position swaping it with that panel to the right. * @param {number} panelIndex - Position of the panel

* Deletes a subpanel * @param {number} subPanelIndex - you already know lol

* Creates a new arrow * @param {Object} [opt] - Optional parameters. * @param {string} [opt.arrowType] - Arrow type * @param {string} [opt.leftT

* Creates a new ExitTab. * @param {string} number - Number to display on the exit tab. * @param {string} [position=null] - Position to display the

* Post that contains the panels. * @param {string} polePosition - Position of the poles on which to display the panels. * @param {number} [lanesWi

* Cretes a new sign. * @param {Object} [opt] - Optional parameters. * @param {string} [opt.controlText="New Sign"] - Control cities to display on

* Creates a new Panel consisting of a sign and an exit tab. * @param {string} color - Background color of the sign and exit tab. * @param {Sign} s

* Creates anew a route shield. * @param {string} [type="I-"] - Type of shield. * @param {number} [routeNumber="1"] - Route number to display on sh