*   `tf.function`:

    *   `tf.function` now uses the Python inspect library directly for parsing the signature of the Python function it is decorated on. This change may break code where the function signature is malformed, but was ignored previously, such as:
        *   Using `functools.wraps` on a function with different signature

  let summary = [{
Compute the polygamma function \\(\psi^{(n)}(x)\\).
  }];

  let description = [{
The polygamma function is defined as:


\\(\psi^{(a)}(x) = \frac{d^a}{dx^a} \psi(x)\\)

where \\(\psi(x)\\) is the digamma function.
The polygamma function is defined only for non-negative integer orders \\a\\.
  }];

  let arguments = (ins

		{"Record.PC", Field, 21},
		{"Record.Time", Field, 21},
		{"SetDefault", Func, 21},
		{"SetLogLoggerLevel", Func, 22},
		{"Source", Type, 21},
		{"Source.File", Field, 21},
		{"Source.Function", Field, 21},
		{"Source.Line", Field, 21},
		{"SourceKey", Const, 21},
		{"String", Func, 21},
		{"StringValue", Func, 21},
		{"TextHandler", Type, 21},
		{"Time", Func, 21},
		{"TimeKey", Const, 21},

205F          ; disallowed_STD3_mapped ; 0020          # 3.2  MEDIUM MATHEMATICAL SPACE
2060          ; ignored                                # 3.2  WORD JOINER
2061..2063    ; disallowed                             # 3.2  FUNCTION APPLICATION..INVISIBLE SEPARATOR
2064          ; ignored                                # 5.1  INVISIBLE PLUS
2065          ; disallowed                             # NA   <reserved-2065>