PhoenixSwagger.Schema.format

You're seeing just the function format, go back to PhoenixSwagger.Schema module for more information.

format(model, format)

Sets the format of a Schema with type: :string.

iex> alias PhoenixSwagger.Schema
...> %Schema{type: :string} |> Schema.format(:datetime)
%PhoenixSwagger.Schema{type: :string, format: :datetime}