Dragonite.Parser.struct_at

You're seeing just the function struct_at, go back to Dragonite.Parser module for more information.
Link to this function

struct_at(struct, arg2, position)

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Specs

struct_at(
  %DragoniteEDI.Message{iea: term(), isa: term(), sts: term()},
  String.t(),
  any()
) :: String.t() | list() | non_neg_integer()

Get value at position, length or full values of some segment in Edi message struct

Example

iex(1)> Dragonite.Parser.struct_at(%DragoniteEDI.Message{}, "isa", 1)