hasFunction

True if child M1 in A has a function M2.

  1. eponymoustemplate hasFunction(alias A, string M)
  2. alias hasFunction(alias A, string M1, string M2) = hasFunction!(getChild!(A, M1), M2)
    alias hasFunction(alias A, string M1, string M2) = hasFunction!(getChild!(A, M1), M2)

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