Condense the reference in the README by removing the duplicate descriptions and providing one general one for all of them

README

@@ -128,63 +128,19 @@ func (c *Cache) IncrementFloat(k string, n float64) error
     possible to increment it by n.
 
 func (c *Cache) IncrementInt(k string, n int) (int, error)
-    Increment an item of type int by n. Returns an error if the item's value
-    is not an int, or if it was not found. If there is no error, the incremented
-    value is returned.
-
 func (c *Cache) IncrementInt8(k string, n int8) (int8, error)
-    Increment an item of type int8 by n. Returns an error if the item's value
-    is not an int8, or if it was not found. If there is no error, the
-    incremented value is returned.
-
 func (c *Cache) IncrementInt16(k string, n int16) (int16, error)
-    Increment an item of type int16 by n. Returns an error if the item's value
-    is not an int16, or if it was not found. If there is no error, the
-    incremented value is returned.
-
 func (c *Cache) IncrementInt32(k string, n int32) (int32, error)
-    Increment an item of type int32 by n. Returns an error if the item's value
-    is not an int32, or if it was not found. If there is no error, the
-    incremented value is returned.
-
 func (c *Cache) IncrementInt64(k string, n int64) (int64, error)
-    Increment an item of type int64 by n. Returns an error if the item's value
-    is not an int64, or if it was not found. If there is no error, the
-    incremented value is returned.
-
 func (c *Cache) IncrementUint(k string, n uint) (uint, error)
-    Increment an item of type uint by n. Returns an error if the item's value
-    is not an uint, or if it was not found. If there is no error, the
-    incremented value is returned.
-
 func (c *Cache) IncrementUint8(k string, n uint8) (uint8, error)
-    Increment an item of type uint8 by n. Returns an error if the item's value
-    is not an uint8, or if it was not found. If there is no error, the
-    incremented value is returned.
-
 func (c *Cache) IncrementUint16(k string, n uint16) (uint16, error)
-    Increment an item of type uint16 by n. Returns an error if the item's value
-    is not an uint16, or if it was not found. If there is no error, the
-    incremented value is returned.
-
 func (c *Cache) IncrementUint32(k string, n uint32) (uint32, error)
-    Increment an item of type uint32 by n. Returns an error if the item's value
-    is not an uint32, or if it was not found. If there is no error, the
-    incremented value is returned.
-
 func (c *Cache) IncrementUint64(k string, n uint64) (uint64, error)
-    Increment an item of type uint64 by n. Returns an error if the item's value
-    is not an uint64, or if it was not found. If there is no error, the
-    incremented value is returned.
-
 func (c *Cache) IncrementFloat32(k string, n float32) (float32, error)
-    Increment an item of type float32 by n. Returns an error if the item's value
-    is not an float32, or if it was not found. If there is no error, the
-    incremented value is returned.
-
 func (c *Cache) IncrementFloat64(k string, n float64) (float64, error)
-    Increment an item of type float64 by n. Returns an error if the item's value
-    is not an float64, or if it was not found. If there is no error, the
+    Increment an item of the specified type by n. Returns an error if the item's
+    value is not of that type, or if it was not found. If there is no error, the
     incremented value is returned.
 
 func (c *Cache) Decrement(k string, n int64) error
@@ -199,68 +155,20 @@ func (c *Cache) DecrementFloat(k string, n float64) error
     possible to decrement it by n.
 
 func (c *Cache) DecrementInt(k string, n int) (int, error)
-    Decrement an item of type int by n. Returns an error if the item's value is
-    not an int, or if it was not found. If there is no error, the decremented
-    value is returned.
-
 func (c *Cache) DecrementInt8(k string, n int8) (int8, error)
-    Decrement an item of type int8 by n. Returns an error if the item's value is
-    not an int8, or if it was not found. If there is no error, the decremented
-    value is returned.
-
 func (c *Cache) DecrementInt16(k string, n int16) (int16, error)
-    Decrement an item of type int16 by n. Returns an error if the item's value
-    is not an int16, or if it was not found. If there is no error, the
-    decremented value is returned.
-
 func (c *Cache) DecrementInt32(k string, n int32) (int32, error)
-    Decrement an item of type int32 by n. Returns an error if the item's value
-    is not an int32, or if it was not found. If there is no error, the
-    decremented value is returned.
-
 func (c *Cache) DecrementInt64(k string, n int64) (int64, error)
-    Decrement an item of type int64 by n. Returns an error if the item's value
-    is not an int64, or if it was not found. If there is no error, the
-    decremented value is returned.
-
 func (c *Cache) DecrementUint(k string, n uint) (uint, error)
-    Decrement an item of type uint by n. Returns an error if the item's value
-    is not an uint, or if it was not found. If there is no error, the
-    decremented value is returned.
-
 func (c *Cache) DecrementUintptr(k string, n uintptr) (uintptr, error)
-    Decrement an item of type uintptr by n. Returns an error if the item's value
-    is not an uintptr, or if it was not found. If there is no error, the
-    decremented value is returned.
-
 func (c *Cache) DecrementUint8(k string, n uint8) (uint8, error)
-    Decrement an item of type uint8 by n. Returns an error if the item's value
-    is not an uint8, or if it was not found. If there is no error, the
-    decremented value is returned.
-
 func (c *Cache) DecrementUint16(k string, n uint16) (uint16, error)
-    Decrement an item of type uint16 by n. Returns an error if the item's value
-    is not an uint16, or if it was not found. If there is no error, the
-    decremented value is returned.
-
 func (c *Cache) DecrementUint32(k string, n uint32) (uint32, error)
-    Decrement an item of type uint32 by n. Returns an error if the item's value
-    is not an uint32, or if it was not found. If there is no error, the
-    decremented value is returned.
-
 func (c *Cache) DecrementUint64(k string, n uint64) (uint64, error)
-    Decrement an item of type uint64 by n. Returns an error if the item's value
-    is not an uint64, or if it was not found. If there is no error, the
-    decremented value is returned.
-
 func (c *Cache) DecrementFloat32(k string, n float32) (float32, error)
-    Decrement an item of type float32 by n. Returns an error if the item's value
-    is not an float32, or if it was not found. If there is no error, the
-    decremented value is returned.
-
 func (c *Cache) DecrementFloat64(k string, n float64) (float64, error)
-    Decrement an item of type float64 by n. Returns an error if the item's value
-    is not an float64, or if it was not found. If there is no error, the
+    Decrement an item of the specified type by n. Returns an error if the item's
+    value is not of that type, or if it was not found. If there is no error, the
     decremented value is returned.
 
 func (c *Cache) Delete(k string)