code: function isMultiplyByOne(node) {
      return node.operator === "*" && (
          node.left.type === "Literal" && node.left.value === 1 ||
          node.right.type === "Literal" && node.right.value === 1
      );
  }
docs: Checks whether or not a node is a multiplying by one.
  @param {BinaryExpression} node - A BinaryExpression node to check.
  @returns {boolean} Whether or not the node is a multiplying by one.