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Ecto.Type for maps.
Ecto.Type
options
:key (atom/0) - Required. The type of the keys in the map.
:key
atom/0
:value (atom/0) - Required. The type of the values in the map.
:value
examples
schema "user_metadata" do field :free_form_meta, Exandra.Map, key: :string, value: :string end