code: function replaceNode(node, value, yaml) {
    let indentedValue = indent(value, node.start_mark.column);
    let lineStart = node.start_mark.pointer - node.start_mark.column;
  
    return yaml.substr(0, lineStart) +
      indentedValue +
      yaml.substring(getNodeEndMark(node).pointer);
  }
docs: /*
  Place value in node range in yaml string
  
  @param node {Node}
  @param value {string}
  @param yaml {string}
  
  @returns {string}