Mxpanel.People.increment

You're seeing just the function increment, go back to Mxpanel.People module for more information.
Link to this function

increment(client, distinct_id, property, amount, opts \\ [])

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Specs

increment(Mxpanel.Client.t(), String.t(), String.t(), String.t(), Keyword.t()) ::
  :ok | {:error, term()}

Increment the value of a user profile property. When processed, the property values are added to the existing values of the properties on the profile. If the property is not present on the profile, the value will be added to 0. It is possible to decrement by calling with negative values.

Mxpanel.People.increment(client, "13793", "Number of Logins", 12)