Magik.Validator.validate_inclusion

You're seeing just the function validate_inclusion, go back to Magik.Validator module for more information.
Link to this function

validate_inclusion(value, enum)

View Source

Check if value is included in the given enumerable.

iex(21)> Magik.Validator.validate_inclusion(1, [1, 2])
:ok
iex(22)> Magik.Validator.validate_inclusion(1, {1, 2})
{:error, "given condition does not implement protocol Enumerable"}
iex(23)> Magik.Validator.validate_inclusion(1, %{a: 1, b: 2})
{:error, "not be in the inclusion list"}
iex(24)> Magik.Validator.validate_inclusion({:a, 1}, %{a: 1, b: 2})
:ok