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|      \\  |  ___||  / ____||   / _ \\  | |  | || 
|  --  //  | ||__   / //---`'  / //\ \\ | |/\| || 
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`------`   `-----`    `----`  `-`   `-` `-`   `-`

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Text this: Common coupled fixed point theorems for θ-ψ-contraction mappings endowed with a directed graph