'This method creates the generating reflections of the Weyl group for
a given Lie algebra.  For a Lie algebra of rank n, there are n
different generating reflections.  This function returns them as
a list.
Examples
>>> from sympy.liealgebras.weyl_group import WeylGroup
>>> c = WeylGroup("F4")
>>> c.generators()
[\'r1\', \'r2\', \'r3\', \'r4\']'

def generators(self):

    n = self.cartan_type.rank()
    generators = []
    for i in range(1, (n + 1)):
        reflection = ('r' + str(i))
        generators.append(reflection)
    return generators
