You're seeing just the function replace, go back to Liquex.Filter module for more information.
Link to this function

replace(value, original, replacement, _)

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Replaces every occurrence of the first argument in a string with the second argument.


iex> Liquex.Filter.replace("Take my protein pills and put my helmet on", "my", "your", %{})
"Take your protein pills and put your helmet on"