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in a method definition why would someone set the formal parameter amount equal to the constant PERMANENCE_INC in the formal parameter list?
def increasePermanence(self, amount=PERMANENCE_INC):
""" Increases the permanence of this synapse. """
self.permanence = min(1.0, self.permanence+amount)
That gives default value for the parameter in case it is not provided when the function is called.
For example, to increase permanence by default value, you would call: