pub fn append(
  form_data: FormData,
  name: String,
  value: String,
) -> FormData

pub fn append_blob(
  form_data: FormData,
  name: String,
  value: blob.Blob,
) -> FormData

pub fn append_blob_with_filename(
  form_data: FormData,
  name: String,
  value: blob.Blob,
  filename: String,
) -> FormData

pub fn delete(form_data: FormData, name: String) -> FormData

pub fn entries(form_data: FormData) -> List(#(String, String))

pub fn for_each(
  form_data: FormData,
  callback: fn(String, String) -> Nil,
) -> Nil

pub fn get(
  form_data: FormData,
  name: String,
) -> option.Option(String)

pub fn get_all(form_data: FormData, name: String) -> List(String)

pub fn get_all_files(
  form_data: FormData,
  name: String,
) -> List(file.File)

pub fn get_file(
  form_data: FormData,
  name: String,
) -> option.Option(file.File)

pub fn has(form_data: FormData, name: String) -> Bool

pub fn keys(form_data: FormData) -> List(String)

pub fn new() -> FormData

pub fn set(
  form_data: FormData,
  name: String,
  value: String,
) -> FormData

pub fn set_blob(
  form_data: FormData,
  name: String,
  value: blob.Blob,
) -> FormData

pub fn set_blob_with_filename(
  form_data: FormData,
  name: String,
  value: blob.Blob,
  filename: String,
) -> FormData

pub fn values(form_data: FormData) -> List(String)