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transformation.ex
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transformation.ex
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defmodule Tokenizers.Encoding.Transformation do
@moduledoc """
Module containing handy functions to build the transformations list.
This list is aplied to an encoding using `Tokenizers.Encoding.transform/2`.
"""
@type t :: [
{:pad, {non_neg_integer(), Tokenizers.Encoding.padding_opts()}},
{:truncate, {non_neg_integer(), Tokenizers.Encoding.truncation_opts()}},
{:set_sequence_id, non_neg_integer()}
]
@doc """
Generates the padding transformation.
Check `Tokenizers.Encoding.pad/3` for more information.
"""
@spec pad(non_neg_integer(), Tokenizers.Encoding.padding_opts()) ::
{:pad, {non_neg_integer(), Tokenizers.Encoding.padding_opts()}}
def pad(target_length, opts \\ []) do
{:pad, {target_length, opts}}
end
@doc """
Generates the truncation transformation.
Check `Tokenizers.Encoding.truncate/3` for more information.
"""
@spec truncate(non_neg_integer(), Tokenizers.Encoding.truncation_opts()) ::
{:truncate, {non_neg_integer(), Tokenizers.Encoding.truncation_opts()}}
def truncate(max_length, opts \\ []) do
{:truncate, {max_length, opts}}
end
@doc """
Generates the set_sequence_id transformation.
Check `Tokenizers.Encoding.set_sequence_id/2` for more information.
"""
@spec set_sequence_id(non_neg_integer()) ::
{:set_sequence_id, non_neg_integer()}
def set_sequence_id(id) do
{:set_sequence_id, id}
end
end