handlers

/HH AE1 N D L ER0 Z/
noun
  1. 1

    One who handles something (especially manually) or someone.

    โ€œThe handler of a weapon gets a symbolic sensation of deadly power.โ€

  2. 2

    (in combination) A controller, trainer, someone who handles a specified thing, animal or person (especially a prizefighter).

    โ€œThe spy's handler told him to approach the subject by posing as a dog handler.โ€

  3. 3

    An advisor or manager to a person occupying a position or office to which the speaker believes the holder does not possess the typical qualifications and/or experience.

  4. 4

    A subroutine that handles a particular situation such as an event or exception.

Source: https://en.wiktionary.org/wiki/handler, https://en.wiktionary.org/wiki/handlers