isFile method
- String path
Checks if type(path) returns io.FileSystemEntityType.FILE.
Implementation
Future<bool> isFile(String path) async =>
    await type(path) == io.FileSystemEntityType.file;Checks if type(path) returns io.FileSystemEntityType.FILE.
Future<bool> isFile(String path) async =>
    await type(path) == io.FileSystemEntityType.file;