code: function defineFix(line, actualText, expectedIndent) {
                  return fixer => {
                      const start = sourceCode.getIndexFromLoc({
                          line,
                          column: 0,
                      })
                      const indent = expectedIndent.indentText
                      return fixer.replaceTextRange(
                          [start, start + actualText.length],
                          indent
                      )
                  }
              }
docs: Define the function which fixes the problem.
  @param {number} line The number of line.
  @param {string} actualText The actual indentation text.
  @param {ExpectedIndent} expectedIndent The expected indentation info.
  @returns {function} The defined function.