type RequestAction = {
    type: 'setRelativeUrl';
    relativeUrl: string;
} | {
    type: 'updateHeader';
    header: RequestParameter;
    index?: number;
} | {
    type: 'removeHeader';
    index: number;
} | {
    type: 'updateParameter';
    parameter: RequestParameter;
    index?: number;
} | {
    type: 'removeParameter';
    index: number;
} | {
    type: 'setMethod';
    method: string;
} | {
    type: 'setBody';
    body: string;
    contentType: string;
};