Todo Violation: TODOs should be resolved (책 커버 삭제 시, 책 내용 모두 삭제되게끔 수정 필요) (todo)

Todo Violation: TODOs should be resolved (기록소 이름 변경) (todo)

Trailing Newline Violation: Files should have a single trailing newline (trailing_newline)

Line Length Violation: Line should be 120 characters or less; currently it has 126 characters (line_length)

Line Length Violation: Line should be 120 characters or less; currently it has 122 characters (line_length)

Todo Violation: TODOs should be resolved (nil이라면 바로 error를 return하도록 수정) (todo)

Todo Violation: TODOs should be resolved (- 지워질 것임!) (todo)

Non-optional String -> Data Conversion Violation: Prefer non-optional `Data(_:)` initializer when converting `String` to `Data` (non_optional_string_data_conversion)

Line Length Violation: Line should be 120 characters or less; currently it has 131 characters (line_length)

Trailing Comma Violation: Collection literals should not have trailing commas (trailing_comma)

Todo Violation: TODOs should be resolved (책 커버 삭제 시, 책 내용 모두 삭제되게끔 수정 필요) (todo)

Todo Violation: TODOs should be resolved (기록소 이름 변경) (todo)

Trailing Newline Violation: Files should have a single trailing newline (trailing_newline)

Line Length Violation: Line should be 120 characters or less; currently it has 126 characters (line_length)

Line Length Violation: Line should be 120 characters or less; currently it has 122 characters (line_length)

Todo Violation: TODOs should be resolved (nil이라면 바로 error를 return하도록 수정) (todo)

Todo Violation: TODOs should be resolved (- 지워질 것임!) (todo)

Non-optional String -> Data Conversion Violation: Prefer non-optional `Data(_:)` initializer when converting `String` to `Data` (non_optional_string_data_conversion)

Line Length Violation: Line should be 120 characters or less; currently it has 131 characters (line_length)